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A. Schild (AS) Calibre 1632 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1632 is a vintage Swiss manual-wind mechanical movement valued for its compact size and reliable small seconds function. It is favored by collectors and watchmakers restoring small vintage wristwatches that require precise timing.
Key Technical Highlights

Calibre: AS 1632

Movement Type: Manual winding, mechanical

Diameter: Approximately 17.20 mm (7.75 lignes)

Functions: Hours, minutes, small seconds subdial

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

Lift Angle: About 52 degrees

Common Spare Parts and Components

Mainspring and Barrel: Vital for consistent power delivery; replacement mainsprings must match original specifications for correct torque and duration.

Balance Wheel and Balance Staff: Delicate and precise parts critical for timekeeping accuracy and shock resistance; require exact fitting replacements.

Pallet Fork and Escape Wheel: Wear-prone escapement components; original or high-quality new-old-stock (NOS) parts are essential for smooth operation.

Gear Train Wheels: Minute, third, and fourth wheels prone to wear or damage; commonly sourced from donor movements or NOS stocks.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely for reliable winding and time-setting functions.

Jewels: Synthetic ruby bearings reduce friction and wear; replacements must match original jewel layout and count.

Hands and Dial: Period-appropriate components maintain authentic look and collector value.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts marked explicitly for AS 1632 to guarantee compatibility and maintain movement integrity.

Handle the balance assembly and escapement components carefully due to their delicate construction and precision.

Apply modern synthetic watch oils sparingly, following vintage lubrication guidelines to extend movement longevity.

Always verify the calibre number stamped on the main plate before ordering to avoid incompatibility.

Why AS 1632 Spare Parts Matter

Authentic parts preserve the calibre’s accuracy, reliability, and vintage authenticity, crucial for well-functioning restorations.

Proper restoration increases the historical significance and collector appeal of these compact vintage Swiss manual-wind watches.

The well-documented design aids in sourcing parts and technical servicing within the vintage watchmaker community.

Maintaining the A. Schild AS 1632 calibre with quality spare parts is essential to keep these refined vintage movements operating reliably and authentically.

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A. Schild (AS) Calibre 1635 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1635 is a vintage Swiss automatic mechanical movement known for its compact size, reliability, and precise automatic winding system. This calibre, measuring about 7 lignes, features 21 jewels and is equipped with Incabloc shock protection. It’s prized among collectors and watchmakers restoring mid-20th-century Swiss automatic watches.
Key Technical Highlights

Calibre: AS 1635

Movement Type: Automatic, self-winding mechanical

Diameter: Approximately 7 lignes (about 15.56 mm)

Jewels: 21 synthetic ruby jewels

Shock Protection: Incabloc

Functions: Hours, minutes, automatic winding

Characteristics: Compact size, robust automatic winding, and shock resistance

Common Spare Parts and Components

Mainspring and Barrel: Essential for energy storage; replacements must match original specifications for consistent power delivery.

Balance Wheel and Balance Staff: Critical for accurate timekeeping and shock absorption; exact fit and quality are vital.

Rotor Assembly and Bearings: Central for automatic winding; worn rotor axles or bearings require precise replacement for smooth winding.

Pallet Fork and Escape Wheel: Wear-prone escapement parts; original or high-quality new-old-stock (NOS) parts recommended.

Gear Train Wheels: Includes minute, third, and fourth wheels often sourced from donor movements or NOS inventory due to wear.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely to ensure reliable winding and setting.

Jewels: Synthetic ruby bearings positioned to reduce friction; replacements must match the original layout for durability.

Hands and Dial: Period-correct parts maintain vintage authenticity and collector value.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts specifically marked for AS 1635 to guarantee compatibility and authenticity.

Handle all delicate components, especially the balance and rotor assemblies, with care during servicing.

Employ modern synthetic watch oils sparingly and follow vintage lubrication guidelines for optimal longevity.

Always verify the calibre number stamped on the main plate before ordering parts to avoid compatibility issues.

Why AS 1635 Spare Parts Matter

Authentic spare parts maintain the calibre’s accuracy, automatic winding reliability, and vintage character.

Proper restoration preserves both the mechanical integrity and collector appeal of these compact Swiss automatic movements.

The documented design facilitates sourcing and expert servicing within the vintage watchmaker community.

Maintaining the A. Schild AS 1635 calibre with genuine, high-quality spare parts is essential to keep these classic automatic movements running reliably and preserving their historic Swiss watchmaking heritage.

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A. Schild (AS) Calibre 1650 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1650 is a vintage Swiss manual-wind mechanical movement known for its compact size and sweep seconds feature. It is valued for its reliability, precision, and robustness, making it a favored choice for restoration and servicing within the vintage watch community.
Key Technical Highlights

Calibre: AS 1650

Movement Type: Manual winding, mechanical

Diameter: Approximately 23.30 mm (10.5 lignes)

Functions: Hours, minutes, sweep seconds

Shock Protection: Included to protect against impacts and enhance reliability

Jewels: Typically features synthetic ruby jewels

Beat Rate: Standard vintage rate, typically 18,000 vibrations per hour (vph)

Notable Features: Sweep second hand for continuous and precise seconds tracking

Common Spare Parts and Components

Mainspring and Barrel: Essential for storing and delivering stable power; replacements need to match original dimensions exactly to maintain torque and duration.

Balance Wheel and Balance Staff: Delicate, precision components vital for accurate timekeeping and shock resistance; require exact fit and quality replacements.

Pallet Fork and Escape Wheel: Frequently worn escapement parts; sourcing original or quality new-old-stock (NOS) parts is critical for smooth operation.

Gear Train Wheels (Minute, Third, Fourth): Subject to wear; often salvaged from donor movements or sourced from NOS stocks.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely to support reliable winding and time-setting functions.

Jewels: Synthetic ruby bearings strategically placed to reduce friction; replacements must match original configuration for optimum movement efficiency.

Hands and Dial Components: Period-correct parts improve authentic restoration and maintain collector value.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts specifically marked for AS 1650 to ensure compatibility and maintain movement integrity.

Handle balance wheel and escapement components with care during servicing due to their delicacy and essential precision role.

Apply modern synthetic watch oils sparingly following vintage lubrication guidelines to optimize movement longevity.

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

Why AS 1650 Spare Parts Matter

Authentic spare parts maintain the calibre’s accuracy, reliability, and vintage character, which are fundamental to the movement’s proper function and longevity.

Proper servicing with genuine components preserves the mechanical integrity and collector appeal of vintage timepieces featuring the AS 1650.

The AS 1650 movement’s documented design supports sourcing and expert servicing within the watchmaker community.

Maintaining the A. Schild AS 1650 calibre with quality spare parts is vital to ensure these compact, vintage manual-wind watches continue running reliably and authentically.

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A. Schild (AS) Calibre 1651 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1651 is a vintage Swiss manual-wind mechanical movement, closely related to the AS 1650 calibre, known for its robust design and sweep seconds function. It measures approximately 25.60 mm (11.5 lignes) in diameter and is favored by collectors and watchmakers restoring mid-20th-century manual-wind watches.
Key Technical Highlights

Calibre: AS 1651

Movement Type: Manual winding, mechanical with sweep seconds

Diameter: Approximately 25.60 mm (11.5 lignes)

Functions: Hours, minutes, sweep seconds

Jewels: Typically 17 synthetic ruby jewels

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

Shock Protection: Incorporated for durability and reliable operation

Common Spare Parts and Components

Mainspring and Barrel: Critical for power storage and consistent torque delivery; must match original specs exactly for optimal performance.

Balance Wheel and Balance Staff: Delicate parts crucial for accurate timekeeping and shock resistance; require precise fit and quality replacement parts.

Pallet Fork and Escape Wheel: Wear-prone escapement components; sourcing original or high-quality new-old-stock (NOS) parts is essential for smooth operation.

Gear Train Wheels (Minute, Third, Fourth): Often replaced due to wear or damage; typically sourced from donor movements or NOS stock.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit exactly to ensure reliable winding, time-setting, and smooth functionality.

Jewels: Synthetic ruby bearings arranged to minimize friction; replacement jewels must correspond to the original layout and number.

Hands and Dial Parts: Period-correct components maintain vintage authenticity and collector value.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts clearly marked for AS 1651 or compatible AS calibres like AS 1650 for guaranteed fit and movement integrity.

Handle delicate components like balance wheel and escapement with care during servicing.

Apply modern synthetic watch oils sparingly, following vintage lubrication standards to optimize longevity.

Always verify the calibre number stamped on the main plate before ordering spare parts to avoid compatibility issues.

Why AS 1651 Spare Parts Matter

Authentic spare parts preserve the calibre’s accuracy, reliability, and vintage character, crucial for maintaining its mechanical integrity.

Proper restoration using genuine components supports the collector appeal and functional longevity of classic manual-wind watches.

The well-documented AS 1651 design aids in sourcing parts and expert servicing within the vintage watchmaker community.

Maintaining the A. Schild AS 1651 calibre with quality spare parts ensures these dependable vintage manual-wind watches operate reliably and authentically, preserving their place in Swiss horological heritage.

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A. Schild (AS) Calibre 1673 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1673 is a vintage Swiss automatic mechanical movement produced between 1955 and 1963. It is valued for its reliability, classic design, and efficient self-winding mechanism. The calibre measures 26 mm (11.5 lignes) in diameter, with a height around 4.5 mm, and operates at 18,000 vibrations per hour (vph). It typically contains 17 to 25 synthetic ruby jewels, depending on the version, and has a power reserve of approximately 40 hours.
Key Technical Highlights

Calibre: AS 1673

Movement Type: Automatic, self-winding mechanical

Diameter: 26 mm (11.5 lignes)

Height: Approximately 4.5 mm

Jewels: 17, 21, or 25 synthetic ruby jewels (varies by version)

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

Power Reserve: About 40 hours

Shock Protection: Incabloc or equivalent

Functions: Hours, minutes, automatic winding

Production Period: Circa 1955–1963

Common Spare Parts and Components

Mainspring and Barrel: Vital to store and deliver stable power; replacements must exactly match original specs for durability and proper torque.

Balance Wheel and Balance Staff: Delicate, precision parts essential for timing accuracy and shock resistance; require exact fit and compatible shock protection.

Rotor Assembly and Bearings: Crucial for smooth automatic winding; worn rotor bearings or axles need precise compatible replacements.

Pallet Fork and Escape Wheel: Wear-prone escapement components; sourcing original or quality new-old-stock (NOS) parts enhances reliability.

Gear Train Wheels (Minute, Third, Fourth): Commonly replaced due to wear; often sourced from donor movements or NOS stock.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit perfectly for reliable winding and time-setting functions.

Jewels: Synthetic ruby bearings reduce friction; replacements must correspond to original count and arrangement.

Hands and Dial Components: Period-correct to maintain vintage authenticity and collector appeal.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts specifically marked for AS 1673 to secure compatibility and preserve movement integrity.

Handle delicate components, especially balance and rotor assemblies, with care during servicing.

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

Always verify the calibre number stamped on the main plate before ordering to avoid incompatibility.

Why AS 1673 Spare Parts Matter

Authentic or precisely compatible parts preserve the calibre’s accuracy, automatic winding efficiency, and reliability.

Proper restoration maintains the historical significance and collector value of these classic Swiss automatic watches.

The well-documented design and active watchmaker community support facilitate parts sourcing and expert servicing.

Maintaining the A. Schild AS 1673 calibre with quality spare parts is essential for keeping these vintage automatic movements running reliably and authentically, ensuring their continued appreciation in Swiss horology.

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A. Schild (AS) Calibre 1680 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1680 is a vintage Swiss automatic mechanical movement notable for its reliability, compact size, and classic automatic winding system. Produced around the early 1960s, this calibre features 17 to 25 jewels, runs at 18,000 vibrations per hour (vph), and offers about a 41-hour power reserve. It is highly regarded by collectors and watchmakers restoring mid-century automatic watches.
Key Technical Highlights

Calibre: AS 1680

Movement Type: Automatic, self-winding mechanical

Diameter: Approximately 25.6 mm (11.5 lignes)

Height: Around 5.2 mm

Jewels: 17, 21, or 25 synthetic ruby jewels depending on version

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

Power Reserve: Approximately 41 hours

Functions: Hours, minutes, sweeping seconds, automatic winding

Shock Protection: Incabloc or equivalent vintage anti-shock system

Production Era: Circa early 1960s

Common Spare Parts and Components

Mainspring and Barrel: Crucial for energy storage; replacement mainsprings must fit original specifications for consistent torque and duration.

Balance Wheel and Balance Staff: Delicate precision parts critical for timing accuracy and shock resistance; require exact fitment and compatible shock protection.

Rotor Assembly and Bearings: Key components for automatic winding efficiency; worn rotor axles or bearings need accurate replacement for sustained performance.

Pallet Fork and Escape Wheel: Wear-prone escapement parts; original or quality new-old-stock (NOS) parts ensure smooth operation.

Gear Train Wheels (Minute, Third, Fourth): These wheels commonly require replacement due to wear or pivot damage; donor movements and NOS parts are typical sources.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit AS 1680 specifications closely to ensure reliable winding and time setting.

Jewels: Synthetic ruby bearings positioned to minimize friction and wear; replacements must match original count and arrangement.

Hands and Dial Components: Period-correct parts help maintain authentic vintage appearance and collector value.

Sourcing and Maintenance Tips

Prefer original, NOS, or donor parts specifically marked for AS 1680 to guarantee compatibility and preserve movement integrity.

Donor movements are valuable sources for hard-to-find or worn components, especially rotor assemblies and escapement parts.

Take special care handling delicate assemblies such as the balance wheel and rotor during servicing.

Use modern synthetic watch oils sparingly, following vintage lubrication standards to prolong movement life and performance.

Always verify the calibre number stamped on the main plate before ordering parts to prevent compatibility issues.

Why AS 1680 Spare Parts Matter

Authentic or precise compatible parts maintain the calibre’s accuracy, automatic winding reliability, and durability.

Proper restoration with genuine components preserves the historical value and collector appeal of these classic Swiss automatic movements.

The detailed technical documentation and community expertise surrounding AS 1680 aids in reliable sourcing and expert servicing.

Maintaining the A. Schild AS 1680 calibre with quality spare parts is essential to keep these robust vintage automatic movements running reliably and preserving their place in Swiss watchmaking heritage.

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A. Schild (AS) Calibre 1681 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1681 is a vintage Swiss automatic mechanical movement, highly regarded for its reliable automatic winding system, sweep seconds, and date function. Measuring approximately 25.60 mm in diameter (11.5 lignes) and about 5.20 mm in height, it operates at a beat rate of 18,000 vibrations per hour (vph) and features 17, 21, or 25 synthetic ruby jewels depending on the version. This calibre is prized by collectors and watchmakers specializing in mid-20th-century automatic wristwatch restoration.
Key Technical Highlights

Calibre: AS 1681

Movement Type: Automatic, self-winding mechanical

Diameter: 25.60 mm (11.5 lignes)

Height: Approximately 5.20 mm

Jewels: Typically 17, 21, or 25 synthetic ruby jewels

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

Power Reserve: Around 40 hours (typical for similar AS calibres)

Functions: Hours, minutes, sweep seconds, date (set by changing time between 20:30-24:00)

Shock Protection: Standard vintage anti-shock system (commonly Incabloc or equivalent)

Production Era: Circa late 1950s to early 1960s

Common Spare Parts and Components

Mainspring and Barrel: Essential for stable power storage and delivery; replacements must exactly match original dimensions and strength for reliable torque.

Balance Wheel and Balance Staff: Critical precision parts requiring exact fitment and shock resistance compatibility for accurate timing.

Rotor Assembly and Bearings: Integral to automatic winding efficiency; worn rotor axles or bearings need precise replacement to maintain smooth function.

Pallet Fork and Escape Wheel: Wear-prone escapement components; sourcing original or quality new-old-stock (NOS) parts ensures reliable escapement operation.

Gear Train Wheels (Minute, Third, Fourth): Common replacement parts due to wear or pivot damage; typically sourced from donor movements or NOS stock.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely to enable smooth winding, time, and date setting functions.

Jewels: Synthetic ruby bearings designed to reduce friction and wear; replacements must correspond to original count and layout.

Hands and Dial Components: Period-appropriate parts help maintain vintage authenticity and collector appeal.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts explicitly marked for AS 1681 to ensure perfect compatibility and maintain movement integrity.

Donor AS 1681 movements can be invaluable resources for hard-to-find or worn components, notably rotor and escapement parts.

Handle delicate components with care during servicing, particularly the balance wheel and rotor assembly.

Apply modern synthetic watch oils sparingly, adhering to vintage lubrication standards for longevity and optimal performance.

Always verify the calibre number stamped on the main plate before ordering spare parts to avoid ordering incompatible components.

Why AS 1681 Spare Parts Matter

Using authentic or exact compatible parts preserves the calibre’s accuracy, automatic winding efficiency, and reliability.

Proper restoration with genuine components maintains the historical integrity and collector value of classic Swiss automatic timepieces.

The documented technical profile and active watchmaker community support make sourcing and servicing easier for the AS 1681 calibre.

Maintaining the A. Schild AS 1681 calibre with quality spare parts is essential for keeping these vintage automatic movements running reliably and preserving their respected place in Swiss horology.

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A. Schild (AS) Calibre 1510 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1510 is a vintage Swiss manual-wind mechanical movement highly regarded for its reliable construction, compact size, and sweeping seconds function. Produced around the 1950s, it remains a favorite among collectors and watchmakers restoring classic mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1510

Movement Type: Manual wind, mechanical

Diameter: 25.60 mm (11.5 lignes)

Height: Approximately 3.60 mm

Jewels: 17 synthetic ruby jewels

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

Lift Angle: 52 degrees

Power Reserve: Approximately 39 hours

Functions: Hours, minutes, sweep central seconds

Common Spare Parts and Service Needs

Mainspring and Barrel: Critical for consistent power delivery; replacement mainsprings must match original specifications to maintain proper function.

Balance Wheel and Balance Staff: Vital precision components requiring exact fit, especially considering shock protection compatibility; delicate and prone to damage.

Pallet Fork and Escape Wheel: Key escapement components typically needing replacement due to wear; original or new-old-stock (NOS) parts are recommended.

Gear Train Wheels (Minute, Third, Fourth): Often affected by wear or pivot damage, sourced from donor movements or NOS suppliers.

Setting Components (Stem, Crown, Levers, Springs): Essential for reliable winding and time setting; precise fitting to AS 1510 dimensions is necessary.

Jewels: Synthetic ruby bearings placed accurately to reduce friction; replacements must correspond in count and position.

Hands and Dial: Period-correct or original hands and dials help maintain the watch’s authentic vintage appearance.

Sourcing and Maintenance Tips

Prioritize original, NOS, or donor parts explicitly marked for AS 1510 to ensure compatibility and authenticity.

Handle delicate components, especially the balance wheel and escapement, with great care during servicing.

Use modern synthetic watch oils sparingly, following vintage lubrication standards for longevity and performance.

Always verify the calibre number stamped on the main plate before ordering spare parts to avoid incompatibility.

Why AS 1510 Spare Parts Matter

Maintaining genuine or compatible parts ensures the calibre’s accuracy, reliability, and preserves its historic value.

Proper restoration using authentic spares sustains collector appeal and vintage character.

The AS 1510 is well documented in watchmaker references, facilitating parts sourcing and technical support.

Keeping the A. Schild AS 1510 calibre serviced with quality spare parts is essential for preserving these classic Swiss manual-wind watches’ reliable function and collectible status.

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A. Schild (AS) Calibre 1511 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1511 is a vintage Swiss manual-wind mechanical movement famed for its robust build, precision, and reliability. This calibre is closely related to AS 1510, sharing essentially identical parts and specifications. Notably, the AS 1511 powered the highly accurate Omega Marine Chronometer, certified by the Besançon Institute for exceptional chronometric accuracy.
Key Technical Highlights

Calibre: AS 1511

Movement Type: Manual winding, mechanical

Diameter: 30.00 mm (13.5 lignes)

Height: 3.80 mm

Jewels: 17 synthetic ruby jewels

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

Power Reserve: Approximately 41 hours

Functions: Hours, minutes, sub-seconds

Notable Use: Omega Marine Chronometer, certified for exceptional precision

Common Spare Parts and Service Needs

Mainspring and Barrel: Vital for power delivery; replacement parts must match original dimensions exactly for consistent torque and longevity.

Balance Wheel and Balance Staff: Precision parts critical for accurate timekeeping; delicate components that must fit exactly to ensure proper shock resistance.

Pallet Fork and Escape Wheel: Escapement components prone to wear; original or high-quality new-old-stock (NOS) parts are recommended for smooth operation.

Gear Train Wheels (Minute, Third, Fourth): Often experience wear; typically sourced from donor movements or NOS stock.

Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely to ensure reliable winding and time setting.

Jewels: Synthetic ruby bearings positioned to reduce friction; replacements must correspond perfectly to the movement’s original configuration.

Hands and Dial: Period-correct parts enhance authenticity and maintain collector value.

Sourcing and Maintenance Tips

Use original, NOS, or donor parts marked specifically for AS 1511 or the fully interchangeable AS 1510 to guarantee compatibility and authenticity.

Handle balance and escapement components with care owing to their delicacy and the movement’s precision standards.

Apply modern synthetic watch oils sparingly, following vintage lubrication guidelines to optimize longevity and performance.

Always verify the calibre number stamped on the main plate to prevent ordering incompatible parts.

Why AS 1511 Spare Parts Matter

Authentic parts preserve the calibre’s renowned precision and reliability, essential for chronometer-level performance.

Proper restoration maintains the historical significance and collector appeal of iconic watches like the Omega Marine Chronometer.

The well-documented AS 1511 design facilitates sourcing and expert servicing support within the vintage watchmaker community.

Maintaining the A. Schild AS 1511 calibre with quality spare parts ensures these historically important, high-precision manual-wind watches continue to operate reliably and authentically.

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A. Schild (AS) Calibre 1525 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1525 is a vintage Swiss manual-wind mechanical movement produced during the 1960s, known for its flat design, reliable timekeeping, and robust construction. This calibre is admired for its classical layout, featuring a sub-seconds function and 17 synthetic ruby jewels with Incabloc shock protection.
Key Technical Highlights

Calibre: AS 1525

Movement Type: Manual winding, mechanical

Diameter: 23.0 – 23.3 mm (10½ lignes)

Height: 2.8 mm (very flat profile)

Jewels: 17 (some variations up to 21 jewels)

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

Power Reserve: Approx. 44 hours

Functions: Hours, minutes, sub-seconds

Shock Protection: Incabloc system

Winding System: Yoke winding mechanism

Common Spare Parts and Components

Mainspring and Barrel: Critical for maintaining stable power delivery; exact replacements ensure consistent torque.

Balance Wheel and Balance Staff: Precision parts vital for accuracy; delicate and require original or compatible parts considering shock protection.

Pallet Fork and Escape Wheel: Frequently worn escapement components needing genuine or new-old-stock (NOS) replacements.

Gear Train Wheels: Including center, third, and fourth wheels; prone to wear and sourced from donor movements or NOS stock.

Setting Mechanism (Stem, Crown, Setting Lever, Springs): Essential for winding and time-setting; must fit exact AS 1525 dimensions.

Jewels: Synthetic ruby bearings placed to minimize friction; replacements must match original count and placement.

Hands and Dial: Period-appropriate parts preserve vintage authenticity during restoration.

Sourcing and Maintenance Tips

Use original or NOS spare parts marked specifically for AS 1525 to ensure proper fit and preserve movement integrity.

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

Handle delicate balance and escapement assemblies with care during servicing.

Apply modern synthetic oils sparingly, following vintage watch lubrication standards for longevity.

Confirm the calibre number stamped on the main plate before ordering parts to prevent incompatibility.

Why AS 1525 Spare Parts Matter

Maintaining genuine or precise compatible parts preserves movement accuracy, reliability, and durability.

Proper repairs uphold collector value and preserve the historical and mechanical integrity of vintage Swiss watches.

The AS 1525 remains a respected calibre among watchmakers, facilitating availability of technical data and parts.

This ensures that A. Schild AS 1525 watches continue to run reliably and authentically for collectors and enthusiasts alike.