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A. Schild (AS) Calibre 1336 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1336 is a vintage Swiss automatic mechanical movement known for its robust construction, reliable automatic winding, and sweeping seconds function. Produced around the 1950s, it is prized by collectors and watchmakers restoring mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1336

Movement Type: Automatic winding, mechanical

Diameter: Approximately 25.38 mm (11.25 lignes)

Height: 5.75 mm

Jewels: 17 synthetic ruby jewels

Beat Rate: 18,000 vibrations per hour (vph)

Power Reserve: Approximately 38 hours

Functions: Hours, minutes, sweeping central seconds

Shock Protection & Winding: Incorporated automatic winding system with a yoke-type mechanism typical of the era

Common Spare Parts and Service Components

Mainspring and Barrel: Essential for reliable power storage; fatigued mainsprings require exact replacements to ensure consistent performance.

Balance Wheel and Balance Staff: Critical for timing precision; delicate parts prone to shock damage that must be matched precisely for compatibility.

Rotor Assembly: Key to automatic winding functionality; wear or damage to the rotor axle or bearings hampers winding efficiency.

Pallet Fork and Escape Wheel: Frequently worn escapement components requiring original or compatible parts to maintain smooth escapement action.

Gear Train Wheels: Minute, third, and fourth wheels can suffer wear or damage; often sourced from donor movements or new-old-stock (NOS).

Stem, Crown, Setting Lever & Springs: Vital for winding and time-setting; must fit the AS 1336 dimensions exactly.

Jewels: Synthetic ruby bearings reduce friction and wear; replacements have to match original count and placement.

Hands and Dial: Period-correct components preserve authenticity; often sourced from specialist vintage suppliers.

Sourcing and Maintenance Tips

Use original or NOS spare parts explicitly marked for AS 1336 to ensure perfect fit and authenticity.

Salvage donor movements are a valuable source for rare or worn components.

Careful handling during servicing is essential due to the delicate balance and rotor assembly.

Apply modern synthetic oils sparingly, adhering to vintage watch lubrication standards to maximize longevity.

Confirm the calibre number stamped on the main plate before ordering parts to avoid mismatches.

Why AS 1336 Spare Parts Matter

Maintaining original or compatible parts preserves precise timekeeping and reliable automatic winding.

Correct restoration enhances collector value and maintains the historical integrity of mid-century Swiss watches.

The AS 1336 remains well-regarded among vintage watchmakers, facilitating availability of technical data and parts.

Sourcing quality spare parts is crucial for sustaining the A. Schild AS 1336’s legacy as a durable and collectible automatic movement of Swiss horology.

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A. Schild (AS) Calibre 1361 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1361 is a vintage Swiss automatic mechanical movement highly regarded for its robust design and reliable automatic winding. Produced around the 1950s, this calibre features a classic sweep seconds function and remains a favored choice among collectors and watchmakers restoring mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1361 (including AS 1361N variant)

Movement Type: Automatic, self-winding mechanical

Diameter: Approximately 25.6 mm (11.5 lignes)

Height: 5.75 mm

Jewels: 17 synthetic ruby jewels

Beat Rate: 18,000 vibrations per hour (vph)

Power Reserve: Around 38 hours

Lift Angle: 52 degrees

Functions: Central hours, central minutes, sweeping central seconds

Shock Protection: Incabloc anti-shock system

Hand Sizes: Hour – 1.3 mm, Minute – 0.9 mm, Seconds – 0.2 mm

Additional Info: Hand-windable in addition to automatic winding; no hacking function

Common Spare Parts and Components

Mainspring and Barrel: Critical for power delivery; fatigue from age requires exact replacement for consistent performance.

Balance Wheel and Balance Staff: Essential for timing accuracy and prone to shock damage; precise matching parts needed for reliable operation.

Rotor Assembly and Bearings: Key for automatic winding function; wear here can reduce efficiency and requires specialist replacement.

Pallet Fork and Escape Wheel: Escapement parts subjected to wear; sourcing genuine or compatible parts is crucial.

Gear Train Wheels (Center, Third, Sweep Second): Tooth wear and pivot damage common; donor movements or new-old-stock (NOS) parts often used.

Setting Mechanism (Stem, Crown, Levers, Springs): Necessary for reliable winding and time adjustment; must be dimensionally accurate.

Jewels: Synthetic ruby bearings must match original placement for low friction and durability.

Hands and Dial Components: Period-correct parts maintain authenticity and aesthetic integrity during restoration.

Sourcing and Maintenance Tips

Prioritize original or NOS spare parts labeled for AS 1361 to ensure compatibility and genuine quality.

Salvage donor movements are valuable sources for rare or worn components such as balance assemblies and gear wheels.

Handle balance and rotor assemblies carefully due to their delicate nature and anti-shock components.

Use modern synthetic oils sparingly, adhering to vintage lubrication standards to prolong movement longevity.

Always verify the calibre number stamped on the main plate before ordering parts.

Why AS 1361 Spare Parts Matter

Preserving the Movement’s Reliability: Using authentic parts retains the renowned robust automatic winding and accurate timekeeping.

Maintaining Collector Value: Correct restoration with original components preserves vintage appeal and historical integrity.

Facilitating Effective Service: AS 1361 is well documented and recognized among watchmakers, making parts sourcing and servicing more accessible.

The A. Schild AS 1361 remains a classic Swiss automatic calibre whose legacy depends on careful sourcing and fitting of quality spare parts to keep these elegant vintage watches running reliably and authentically.

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A. Schild (AS) Calibre 1149 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1149 is a robust Swiss manual-wind mechanical movement from the mid-20th century, widely respected for precision and reliability. It is popular among vintage watch collectors and repairers due to its solid construction and classic design.
Key Technical Highlights

Calibre: AS 1149

Diameter: 29.00 mm (13 lignes)

Thickness: 3.80 mm

Jewels: Versions with 15, 16, 17, or 21 jewels

Beat Rate: 18,000 vibrations per hour (A/h)

Power Reserve: Approximately 41 hours

Winding: Manual wind, traditional yoke system

Shock Protection: Generally none or minimal on earlier variants

Common Spare Parts

Mainspring: Essential for providing power; prone to fatigue and breakage over decades and needs precise sizing for AS 1149.

Balance Staff and Balance Assembly: Delicate parts that control timekeeping accuracy; often require replacement if damaged due to wear or shock.

Pallet Fork and Escape Wheel: Components that experience wear and may require original or compatible replacements for correct escapement function.

Wheels (Minute, Third, Fourth): Wear and tooth damage are common; sourcing from donor movements or new-old-stock (NOS) is typical.

Stem, Crown, and Setting Mechanism: Critical for winding and time setting; tend to wear and may need original compatible replacements.

Jewels: Ruby bearings ensure smooth gear train operation; matching jewel count and placement is necessary for repairs.

Hands and Dials: Period-accurate parts maintain watch authenticity during restoration; these are often scarce and sourced from collectors or specialists.

Sourcing and Maintenance Tips

Original Parts: Recommended to use parts explicitly for AS 1149 due to specific dimensions and design.

Donor Movements: Non-working AS 1149 movements are valuable sources of spare parts, especially balance and wheels.

Compatibility: Some parts may interchange with similar AS calibers, but careful verification of fit is needed.

Handling: Careful disassembly and reassembly are crucial due to limited shock protection on many models.

Lubrication: Use suitable modern synthetic oils sparingly, respecting the original lubrication standards.

Why AS 1149 Spare Parts Matter

Durability and Precision: Maintaining original or authentic parts ensures the movement’s reliability and timekeeping accuracy.

Collector Value: Proper restoration with correct components preserves historical and monetary value.

Watchmaker Support: Being a classic movement, many watchmakers are familiar with the servicing requirements of AS 1149, facilitating repairs and sourcing.

A. Schild AS 1149 remains one of the prized manual movements in vintage horology, and sourcing quality spare parts is vital for keeping these exceptional timepieces operational and authentic.

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A. Schild (AS) Calibre 1187 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1187 is a classic Swiss manual-wind mechanical movement from the mid-20th century, renowned for its robust construction and reliable sweep seconds function. It is a popular choice among vintage watch collectors and repairers. Proper sourcing of authentic spare parts is essential to maintain its originality and performance.
Key Technical Highlights

Calibre: AS 1187

Size: 10 1/2 lignes (approx. 23.3 mm diameter)

Beat Rate: 18,000 vibrations per hour (A/h)

Jewels: Typically available in 7 or 15 jewel versions

Shock Protection: Equipped with Incabloc shock protection on balance wheel

Balance: Nickel screw balance with a long regulator arm and counterclockwise hairspring

Winding: Manual wind with a yoke winding system on the dial side

Special Feature: Directly driven center seconds hand, requiring a two-layer construction that increases movement height

Common Spare Parts and Maintenance Components

Mainspring and Barrel: Critical for power delivery; fatigue or breakage over time makes replacement necessary. Common mainspring dimensions are approximately 1.60 mm wide, 290-300 mm length.

Balance Staff and Balance Assembly: Delicate parts that influence timekeeping accuracy; replacement usually requires exact parts matched to shock or non-shock variants.

Pallet Fork and Escape Wheel: High-wear components requiring original or compatible replacements to ensure smooth escapement operation.

Minute, Third, and Fourth Wheels: Prone to wear or damage; frequently sourced from donor AS 1187 movements or NOS (new-old-stock).

Stem, Crown, and Setting Mechanism: Essential for reliable winding and time setting; replacement parts need to fit exactly to the AS 1187.

Jewels: Ruby bearings reduce friction; replacement jewels must match original jewel count and placement.

Hands and Dial: Period-correct hands and dials are often sought for authentic restoration since they are rare and typically sourced from collectors or specialists.

Sourcing and Service Tips

Original Parts: Prefer parts specifically marked for AS 1187 to maintain compatibility and authenticity.

Donor Movements: Non-functional AS 1187 movements are invaluable for harvesting rare parts like wheels and escapements.

Handling: The movement has limited shock protection so careful handling during servicing is crucial.

Lubrication: Use modern synthetic oils sparingly and according to vintage watch standards.

Identification: The calibre number is often stamped under the balance or on the main plate and essential for correct part ordering.

Why AS 1187 Spare Parts Matter

Robust and Reliable: Maintaining with original or authentic parts preserves the renowned reliability and precision of the AS 1187 movement.

Collector Value: Accurate restoration with genuine parts retains the movement’s historical and collector appeal.

Watchmaker Familiarity: AS 1187 remains well-known to vintage watchmakers, facilitating repairs with the right parts and expertise.

A. Schild AS 1187 is a hallmark of mid-20th-century Swiss watch engineering, and sourcing correct spare parts is key to sustaining its function and authenticity for generations.

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A. Schild (AS) Calibre 1191 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1191 is a vintage Swiss automatic movement widely appreciated for its robust design, reliability, and classic construction. It was produced starting around 1935 and remains popular among collectors and watchmakers restoring mid-20th-century automatic watches.
Key Technical Highlights

Calibre: AS 1191

Type: Automatic winding movement

Size: 12.5 lignes (approx. 28 mm diameter)

Height: 6.15 mm

Jewels: 17 jewels

Frequency: 18,000 vibrations per hour (vph)

Power Reserve: Approximately 36 hours

Production Era: From 1935 onward

Common Spare Parts and Service Components

Mainspring and Barrel: Critical for power storage and transmission, mainsprings may require replacement when fatigued or broken.

Balance Wheel and Balance Staff: Key components for accurate timing; often require replacement or servicing due to shock damage or wear.

Rotor Assembly: Essential for automatic winding; worn or damaged rotor bearings or pins will affect winding efficiency.

Pallet Fork and Escape Wheel: These escapement parts wear with use and need authentic or compatible replacements to ensure smooth operation.

Wheels (Minute, Third, Fourth): Susceptible to pivot wear or tooth damage; donor movements often serve as the main parts source.

Setting Mechanism (Stem, Crown, Setting Lever): Worn parts can compromise time setting or winding function, necessitating precise replacement parts.

Jewels: High-quality synthetic ruby bearings are necessary for low friction and durability; proper jewel count and size must match the original.

Hands and Dial: Authentic replacement hands and dials are important for restoration but often scarce and may require sourcing from vintage stock.

Sourcing and Maintenance Tips

Original or NOS Parts: Preferably obtain parts explicitly marked or known to fit AS 1191 to guarantee compatibility.

Donor Movements: Non-operational AS 1191 movements are valuable for extracting rare or hard-to-find components.

Aftermarket Parts: Some basic components (such as mainsprings and generic jewels) may be available but should be carefully verified for fit.

Careful Handling: Due to the delicate nature of vintage automatic movements, components like the balance and escapement require expert handling during service.

Lubrication: Use modern synthetic oils sparingly to maintain longevity without compromising the original design.

Why AS 1191 Spare Parts Matter

Durability and Precision: Maintaining this movement with original or compatible parts preserves its hallmark reliability and timekeeping precision.

Collector and Repair Appeal: Accurate restoration supports the value and functionality of vintage watches featuring the AS 1191 movement.

Watchmaker Familiarity: AS 1191 is well-known among vintage Swiss automatic movements, making repair and sourcing feasible with knowledgeable specialists.

The A. Schild AS 1191 is a classic automatic movement reflecting Swiss watchmaking precision from the early 20th century. Sourcing quality spare parts is essential to keep these timepieces reliable and authentic for years to come.

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A. Schild (AS) Calibre 1192 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1192 is a vintage Swiss manual-wind mechanical movement, respected for its robust design and reliable performance during the mid-20th century. It is used in a variety of wristwatches and remains a sought-after caliber for collectors and watchmakers restoring vintage timepieces.
Key Technical Highlights

Calibre: AS 1192

Movement Type: Manual wind, mechanical

Size: Approximately 10.5 lignes (about 23.5-24 mm diameter)

Jewels: Typically 17 jewels

Beat Rate: 18,000 vibrations per hour (vph)

Power Reserve: Around 40+ hours, depending on condition

Winding Mechanism: Traditional manual winding with yoke system

Shock Protection: Some variants include Incabloc or similar shock protection on the balance wheel, but earlier versions may lack it or have minimal protection

Common Spare Parts Needed

Mainspring and Barrel: Critical for consistent power and timekeeping; fatigued mainsprings or worn barrels typically require replacement to restore functionality.

Balance Wheel and Balance Staff: Fragile and essential for precision; broken or bent balance staffs, or damaged balance wheels, require exact replacements.

Pallet Fork and Escape Wheel: High-wear escapement components that often need servicing or part replacement for smooth operation.

Gear Train Wheels: Minute, third, and fourth wheels can wear or accumulate damage and are replaced with correct AS 1192 parts, often sourced from donor movements.

Stem, Crown, and Setting Components: Worn or bent key components in the setting and winding system require exact spare parts to ensure proper operation.

Jewels: Replacement ruby bearings must match the original jewel count and positioning to maintain movement durability and friction reduction.

Hands and Dial: Period-appropriate hands and dials are essential to preserve authenticity during restoration; often sourced from specialist suppliers or vintage parts.

Sourcing and Service Tips

Donor Movements: Salvaging parts from non-functional AS 1192 movements is a common and reliable method to obtain authentic spares like wheels, escapement parts, and balance assemblies.

New Old Stock (NOS): Some critical parts such as mainsprings, jewels, or winding crowns may be available as NOS from specialist vintage watch part dealers.

Compatibility: While some parts from nearby AS calibers may fit, it is recommended to use parts explicitly for AS 1192 to ensure precision fit and optimal performance.

Careful Handling: Given the mechanical nature and vintage status, delicate components like the balance and escapement require expert watchmaker handling during disassembly and servicing.

Lubrication: Use modern synthetic watch oils sparingly, following vintage watch servicing standards to avoid damage or excessive wear.

Why AS 1192 Spare Parts Matter

Reliability and Performance: Maintaining original-type parts ensures that the movement runs smoothly, retains its power reserve, and keeps accurate time.

Collector Value: Correct restoration using authentic parts preserves the movement’s historical integrity and magnetic appeal for collectors.

Watchmaker Familiarity: AS 1192 is well documented and known in vintage watch servicing communities, facilitating access to technical information and suitable spares.

A. Schild AS 1192 embodies Swiss mid-century mechanical watchmaking excellence. Sourcing quality spare parts is essential for keeping these classic movements functional and true to their original design.

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A. Schild (AS) Calibre 1194 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1194 is a vintage Swiss manual-wind mechanical movement introduced in the 1940s. It is known for its robust engineering, reliable performance, and classic design, commonly used in mid-20th-century wristwatches. Proper sourcing of authentic spare parts is vital to maintain its functionality and preserve originality.
Key Technical Highlights

Calibre: AS 1194

Movement Type: Manual wind, mechanical

Diameter: 11.5 lignes (approx. 25.6 mm)

Height: 4.90 mm

Jewels: 17 synthetic ruby jewels

Beat Rate: 18,000 vibrations per hour (vph)

Power Reserve: Approximately 43 hours

Lift Angle: 52 degrees (commonly cited)

Functions: Hours, minutes, sweeping central seconds hand

Production Era: Circa 1940s

Hand Sizes: 1.30 mm for hour hand, 0.85 mm for minute hand, 0.22 mm for seconds hand

Common Spare Parts and Service Components

Mainspring and Barrel: Crucial for reliable power delivery; aged mainsprings often fatigue and require precise replacement.

Balance Wheel and Balance Staff: Key to accurate timekeeping, these delicate parts are prone to shock damage and wear. Compatible or original assemblies are recommended.

Pallet Fork and Escape Wheel: Escapement components subject to wear; authentic or well-fitting replacements ensure smooth operation.

Gear Train Wheels: Minute, third, and fourth wheels may require replacement due to tooth or pivot damage; often sourced from donor movements or new-old-stock (NOS).

Stem, Crown, and Setting Mechanism: These components support winding and time-setting and tend to wear out over time; proper fit is necessary.

Jewels: Replacement ruby bearings must match the original to maintain friction reduction and durability.

Hands and Dial: Period-accurate hands and dials preserve watch authenticity during restoration; sourcing may require specialist suppliers.

Sourcing and Maintenance Tips

Donor Movements: Non-working AS 1194 movements are valuable for harvesting hard-to-find parts such as balance assemblies and wheels.

Original and NOS Parts: Prefer spare parts explicitly designed for AS 1194 to ensure compatibility and maintain authenticity.

Handling: The movement has limited or no shock protection; careful handling of balance and escapement parts during servicing is important.

Lubrication: Use high-quality modern synthetic oils sparingly according to vintage watch servicing standards.

Identification: The calibre number is usually stamped on the main plate or near the balance cock—accurate identification ensures correct parts ordering.

Why AS 1194 Spare Parts Matter

Reliability and Precision: Maintaining original or authentic parts preserves the AS 1194’s praised reliability and accurate timekeeping.

Collector Value: Proper restoration with genuine spare parts enhances historical value and functional longevity.

Watchmaker Familiarity: AS 1194 remains a well-regarded vintage movement, supported by knowledgeable watchmakers and a steady parts market.

The A. Schild AS 1194 exemplifies the technical excellence of mid-20th-century Swiss watchmaking. Sourcing quality spare parts is essential for keeping these timepieces authentic, functional, and collectible.

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A. Schild (AS) Calibre 1200 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1200 is a vintage Swiss manual-wind mechanical movement produced primarily in the 1950s. It is known for its reliability, compact size, and classic design, often found in mid-century wristwatches. Proper sourcing of compatible and authentic spare parts is essential for maintaining the performance and originality of these movements.
Key Technical Highlights

Calibre: AS 1200

Movement Type: Manual wind, mechanical

Diameter: 10.5 lignes (approx. 23.3 mm)

Height: 3.5 mm

Jewels: Typically 15 (some variants with 17)

Beat Rate: 18,000 vibrations per hour (A/h)

Power Reserve: Approximately 45 hours

Lift Angle: 52 degrees

Functions: Hours, minutes, small seconds

Production Era: Circa 1950s

Known Variants: Similar calibres include AS 1247, AS 1288, and AS 1317

Common Spare Parts and Service Components

Mainspring and Barrel: Key for power transmission; aged mainsprings often fatigue and need precise replacement to ensure consistent power delivery.

Balance Wheel and Balance Staff: Critical for accurate timekeeping; prone to shock damage and wear, requiring exact matching parts or donor assemblies.

Hairspring: Flat type, essential for regulating beat; often delicate and may require replacement or adjustment.

Pallet Fork and Escape Wheel: Subject to wear from oscillation and should be matched accurately to the AS 1200 for smooth escapement operation.

Wheels (Minute, Third, Fourth): Tooth wear or pivot damage is common; sourcing from donor movements or NOS (new old stock) parts helps maintain precision.

Stem, Crown, and Setting Mechanism: Vital components for manual winding and time setting, which may wear out with age and require exact fittings.

Jewels: Replacement ruby bearings must match jewel count and position to maintain low friction and durability.

Hands and Dials: Period-correct components help preserve authenticity but are often rare and sourced from collectors or specialized suppliers.

Sourcing and Maintenance Tips

Original or NOS Parts: Prioritize parts specifically marked for AS 1200 to ensure compatibility and maintain authenticity.

Donor Movements: Salvaging parts from non-functioning AS 1200 movements is a practical way to source rare components.

Careful Handling: The movement has limited shock protection; handle balance and escapement components with care during servicing.

Lubrication: Use modern synthetic oils sparingly and according to vintage watch standards to avoid excessive wear.

Identification: The AS 1200 calibre number is usually stamped on the movement’s main plate and is essential for correct part identification.

Why AS 1200 Spare Parts Matter

Robust and Reliable Design: Maintaining original parts preserves the movement’s hallmark reliability and precision.

Vintage Authenticity: Correct spare parts help retain historical and collector value of mid-20th-century wristwatches.

Watchmaker Familiarity: AS 1200 enjoys recognition among vintage watchmakers, facilitating repair and maintenance with accessible knowledge and parts networks.

A. Schild AS 1200 is a classic manual-wind caliber that remains a favorite among vintage watch enthusiasts. Access to quality spare parts is essential to keep these mechanical timepieces running authentically and reliably.

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A. Schild (AS) Calibre 1201 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1201 is a vintage Swiss manual-wind mechanical movement known for its robust construction, reliable performance, and classic design. Produced primarily in the late 1940s and 1950s, the AS 1201 features a decentralized small seconds display at 6 o’clock, combining precision engineering with traditional aesthetics. It remains popular among collectors and watchmakers specializing in vintage Swiss timepieces.
Key Technical Highlights

Calibre: AS 1201

Size: 11 1/2 lignes (approximately 25.6 mm diameter)

Beat Rate: 18,000 vibrations per hour (A/h)

Jewels: 17 synthetic ruby jewels, including cap jewels for the escapement wheel

Escapement: Swiss lever pallet

Balance: Screw balance with Incabloc shock protection on both balance pivots

Construction: Solid, high-quality architecture with a classical gear train and bevelled base plate allowing for curved dials and thin cases

Winding Mechanism: Manual, using yoke winding system

Power Reserve: Typically around 40-45 hours (depending on condition)

Distinctive Features: Decentralized small seconds at 6 o’clock; the escapement wheel positioned under the gear train bridge with jeweled bearings for smooth operation

Common Spare Parts and Maintenance Components

Mainspring and Barrel: Frequent replacements due to loss of tension or fatigue; exact dimension matching is vital for power consistency.

Balance Staff and Balance Assembly: Delicate parts prone to shock damage, requiring compatible replacements matched to the Incabloc shock protection system.

Pallet Fork and Escape Wheel: High wear components needing original or precise compatible parts for reliable escapement function.

Wheels (Minute, Third, Fourth): Teeth and pivot wear common; donor movements or new old stock (NOS) parts are typical sources.

Stem, Crown, Setting Lever & Springs: Often show wear with age; compatible AS 1201 parts or direct replacements are necessary for proper winding and time setting.

Jewels: Replacement synthetic ruby bearings critical to reduce friction and maintain smooth gear train operation.

Hands and Dial: Period-correct small seconds hands and dial parts needed for authentic restoration.

Sourcing and Service Tips

Original and NOS Parts: Aim to source parts explicitly labelled for AS 1201 to ensure fit and maintain authenticity.

Donor Movements: Salvage movements often provide the best sources for rare or hard-to-find parts such as gears, escapement components, and balance assemblies.

Handling: The movement’s Incabloc shock protection mitigates some fragility, but careful handling during disassembly and servicing is still crucial.

Lubrication: Use modern synthetic oils sparingly, in line with vintage watch service practices, to preserve movement longevity and performance.

Identification: The calibre number is generally stamped on the main plate or underneath the balance cock, aiding parts ordering accuracy.

Why AS 1201 Spare Parts Matter

Durability and Precision: Using authentic parts helps preserve the movement’s robust reputation and timekeeping accuracy.

Collector and Watchmaker Demand: AS 1201 remains a sought-after caliber for vintage Swiss watches, making quality spare parts vital for maintenance and restorations.

Technical Legacy: Representing mid-20th-century Swiss watchmaking excellence, careful parts sourcing maintains historical and functional integrity.

The A. Schild AS 1201 watch movement is a distinguished example of classic Swiss horology. Proper sourcing and fitting of original or compatible spare parts is essential to keep these iconic mechanical timepieces reliable, authentic, and cherished by collectors and enthusiasts.

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A. Schild (AS) Calibre 1220 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1220 is a vintage Swiss manual-wind mechanical movement introduced in the late 1940s. It is recognized for its reliable construction, unique main bridge design, and the modern feature of a directly driven sweep seconds hand. The movement remains popular among collectors and watchmakers restoring vintage wristwatches.
Key Technical Highlights

Calibre: AS 1220

Movement Type: Manual wind, mechanical

Diameter: Approximately 10 1/2 lignes (22.8 to 23.3 mm)

Height: About 4.02 mm

Jewels: 17 synthetic ruby jewels

Beat Rate: 18,000 vibrations per hour (A/h)

Power Reserve: Around 34 hours

Escapement: Pallet lever type

Balance: Nickel screw balance with counterclockwise hairspring

Shock Protection: Two 3-leg shock protection systems, likely Ruby-Shock type

Winding Mechanism: Yoke winding system on the dial side

Special Features:

Uncommon transmission gear setup after escapement and wheels, possibly due to space constraints

Offset center wheel and modern direct-driven center seconds

Long regulator arm for fine adjustment

Common Spare Parts for AS 1220

Mainspring and Barrel: Essential for power delivery; aged mainsprings often require accurate replacements.

Balance Staff and Balance Assembly: Fragile parts prone to shock damage; matching parts needed for reliable timekeeping.

Pallet Fork and Escape Wheel: Critical escapement parts that wear over time and need original or compatible replacements.

Transmission Wheels (Minute, Third, Fourth): Can suffer wear or damage; donor movements or NOS parts are typical sources.

Stem, Crown, Setting Lever and Springs: Components essential for winding and time setting, often replaced due to wear.

Jewels and Bearings: Maintain low friction and smooth operation; replacement jewels must match original type and placement.

Hands and Dial Components: Period-correct parts help preserve authenticity and proper fit during restoration.

Sourcing and Maintenance Tips

Use original parts marked for AS 1220 or reliable donor movements for best compatibility.

Handle the movement carefully due to shock-sensitive balance and escapement parts.

Employ modern synthetic oils sparingly to maintain lubrication while respecting vintage standards.

Verify dimensions carefully, especially for mainspring and wheels, given some unique transmission design aspects.

The calibre number is stamped on the main plate or under the balance cock for positive identification when ordering parts.

Why AS 1220 Spare Parts Matter

The AS 1220 represents a technically advanced and robust mid-20th-century Swiss manual caliber.

Maintaining authenticity with correct spare parts preserves timekeeping precision, reliability, and collector value.

Its unique construction and direct-drive sweep seconds make it a notable movement within vintage horology circles.

A. Schild AS 1220 remains a valued manual-wind movement, and quality spare parts sourcing is essential for sustaining its legacy in vintage watch repair and restoration.