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A. Schild (AS) Calibre 1402 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1402 is a vintage Swiss automatic mechanical movement derived from the AS 1361 calibre, enhanced with calendar and moon phase complications. Produced around the 1950s, this movement is well-regarded for its sturdy automatic winding system combined with useful additional functions, making it a prized movement for collectors and watchmakers restoring mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1402

Movement Type: Automatic winding mechanical with calendar and moon phase complications

Diameter: 26 mm (11.5 lignes)

Jewels: Usually 17 or 21 synthetic ruby jewels

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

Power Reserve: Approximately 38 hours

Functions: Hours, minutes, sweep seconds, calendar with date display, moon phase indicator

Shock Protection: Incorporated anti-shock system typical of the era

Additional Info: Based on AS 1361 with added calendar and moon phase mechanisms

Common Spare Parts and Service Components

Mainspring and Barrel: Critical for stable power delivery; must be matched precisely for durability and consistency.

Balance Wheel and Balance Staff: Vital for timing accuracy; subject to shock damage necessitating exact replacements compatible with the movement’s shock protection.

Rotor Assembly and Bearings: Essential for automatic winding functionality; wear here affects winding efficiency and requires specialized parts.

Pallet Fork and Escape Wheel: Frequently serviced escapement components; original or compatible parts ensure smooth operation.

Calendar and Moon Phase Mechanism Parts: Date wheels, moon phase discs, springs, pushers, and cams are vital for full functional restoration of complications.

Wheels (Minute, Third, Fourth): Transmission gears prone to tooth or pivot wear; replacement parts often sourced from donor movements or new-old-stock (NOS).

Setting Mechanism (Stem, Crown, Setting Levers, Springs): Crucial for winding, time setting, and calendar adjustment; precise matching parts required.

Jewels: Synthetic ruby bearings matching the original count and position reduce friction and wear.

Hands and Dial: Period-correct hands and dials maintain authenticity and collector appeal.

Sourcing and Maintenance Tips

Prioritize original or NOS parts labeled for AS 1402 to guarantee perfect fit and maintain authenticity.

Donor AS 1402 movements are invaluable for sourcing rare components, especially calendar and moon phase parts.

Handle delicate assemblies such as the balance wheel, rotor, and calendar mechanisms carefully during servicing.

Use modern synthetic watch oils sparingly, following traditional lubrication standards to maximize longevity.

Confirm the calibre number stamped on the main plate before ordering parts to ensure compatibility.

Why AS 1402 Spare Parts Matter

Preserves Movement Complexity: Genuine parts maintain the accuracy and reliable automatic winding plus calendar and moon phase functions.

Collector and Repair Value: Authentic restoration preserves the vintage integrity and value of the watch.

Watchmaker Familiarity: The AS 1402 is well-documented, enabling effective servicing and parts sourcing in the restoration community.

The A. Schild AS 1402 calibre symbolizes a sophisticated mid-20th-century automatic Swiss movement where precise spare parts sourcing is essential for sustaining its legacy of reliability and functional elegance.

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A. Schild (AS) Calibre 1430 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1430 is a vintage Swiss manual-wind mechanical movement produced between 1955 and 1962, known for its robustness, reliable sweep seconds hand, and Incabloc shock protection. With a power reserve of approximately 41 hours and a beat rate of 18,000 vibrations per hour, it is popular among collectors and watchmakers restoring mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1430

Movement Type: Manual wind, mechanical

Diameter: 26 mm (11.5 lignes)

Height: 4.5 mm

Jewels: 17 or 21 synthetic ruby jewels

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

Power Reserve: Approximately 41 hours

Shock Protection: Incabloc system

Functions: Hours, minutes, sweeping central seconds

Common Spare Parts and Service Components

Mainspring and Barrel: Essential for power delivery; replacement mainsprings must match exact dimensions for proper function.

Balance Wheel and Balance Staff: Critical precision components vulnerable to shock damage; authentic or compatible replacements ensure accurate timekeeping.

Pallet Fork and Escape Wheel: Wear-prone escapement parts requiring original or compatible spares to maintain smooth operation.

Wheels (Minute, Third, Fourth): Essential gear train wheels subject to wear; often sourced from donor movements or new-old-stock (NOS).

Stem, Crown, and Setting Mechanism Components: Crucial for winding and time-setting functions; precise fitment needed.

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

Hands and Dial Components: Period-correct hands and dials preserve authenticity and collector appeal.

Sourcing and Maintenance Tips

Prioritize original, NOS, or donor parts explicitly marked for AS 1430 to ensure compatibility and authenticity.

Salvage donor movements to source rare components like balance staffs, ratchet wheels, and stems.

Handle balance and escapement assemblies with care due to their delicate nature.

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

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

Why AS 1430 Spare Parts Matter

Maintains Reliability: Authentic parts preserve the movement’s dependable timekeeping and robust manual winding operation.

Preserves Collector Value: Correct restoration ensures historical and market value retention.

Facilitates Repair: The AS 1430 is well-documented among watchmakers, enabling sourcing and servicing in vintage watch communities.

Sourcing quality spare parts is essential to keep the A. Schild AS 1430 movement running reliably and authentically, securing its heritage as a classic Swiss manual-wind timepiece.

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A. Schild (AS) Calibre 1442 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1442 is a vintage Swiss manual-wind mechanical movement notable for its compact size, reliability, and additional calendar functions including day and date displays, with the date set by a pusher. It was produced mainly in mid-20th century and remains sought after for restoration by collectors and watchmakers.
Key Technical Highlights

Calibre: AS 1442

Movement Type: Manual wind, mechanical

Diameter: 11.5 lignes (approx. 25.60 mm)

Jewels: Typically 17 or 21 synthetic ruby jewels

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

Power Reserve: Approximately 41 hours

Functions: Hours, minutes, sweeping central seconds, day, and date (date set by pusher at 2 o’clock)

Shock Protection: Basic protection typical for vintage manual movements

Common Spare Parts and Components

Mainspring and Barrel: Essential for power storage and release; requires replacement when fatigued or broken with exact dimension matching.

Balance Wheel and Balance Staff: Delicate precision parts; must match original specifications especially with respect to shock protection.

Pallet Fork and Escape Wheel: Regular wear parts critical for escapement function; original or quality NOS replacements recommended.

Gear Train Wheels (Minute, Third, Fourth): Prone to pivot or tooth wear; donor movements or new-old-stock parts are common sources.

Setting Mechanism (Stem, Crown, Levers, Springs): Critical for manual winding and date adjustment through pushers; must fit AS 1442 specifications closely.

Jewels: Synthetic ruby bearings need correct count and placement for smooth gear operation and longevity.

Calendar Components: Specialized day and date wheels, date jumper springs, and pusher mechanism are needed to preserve full calendar function.

Hands and Dial: Period-accurate parts preserve vintage authenticity and proper fit.

Sourcing and Maintenance Tips

Prioritize original or NOS parts clearly marked for AS 1442 to maintain watch authenticity and fit.

Donor AS 1442 movements are invaluable sources for rare components and calendar-related parts.

Handle balance, escapement, and calendar pushers with care during servicing due to delicacy.

Use modern synthetic lubricants sparingly in accordance with vintage watch standards.

Confirm the calibre number stamped on the main plate before ordering parts to ensure compatibility.

Why AS 1442 Spare Parts Matter

Using genuine or precise compatible parts preserves the movement’s accuracy, calendar functions, and reliability.

Correct restoration retains collector value and historical authenticity.

AS 1442 is documented among watchmakers, easing parts sourcing and repair.

Sourcing quality spare parts is essential to keep the A. Schild AS 1442 movement functioning reliably and preserving its legacy as a classic Swiss manual wind watch with useful calendar complications.

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A. Schild (AS) Calibre 1456 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1456 is a vintage Swiss manual-wind mechanical movement, valued for its compact size, reliability, and sweeping seconds function. This calibre is typical of mid-20th-century watch engineering and remains popular among collectors and watchmakers restoring classic wristwatches.
Key Technical Highlights

Calibre: AS 1456

Movement Type: Manual wind, mechanical

Diameter: Approximately 19.4 mm (8.75 lignes)

Height: Around 3.4 mm

Jewels: 17 synthetic ruby jewels

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

Power Reserve: Approximately 36 hours

Functions: Hours, minutes, sweep central seconds

Common Spare Parts and Service Needs

Mainspring and Barrel: Essential for consistent power delivery; replacement needed when fatigued or broken, must match original specifications.

Balance Wheel and Balance Staff: Crucial for timekeeping accuracy; shock or wear damage requires precise replacements compatible with AS 1456 dimensions and shock settings.

Pallet Fork and Escape Wheel: Wear-prone escapement components; authentic or new-old-stock (NOS) parts preferred for smooth operation.

Wheels (Minute, Third, Fourth): Gear train wheels subject to wear; typically sourced from donor movements or NOS supply.

Setting Mechanism (Stem, Crown, Levers, Springs): Vital for manual winding and time setting; exact fit required for reliable function.

Jewels: Synthetic ruby bearings, matching original count and placement to reduce friction and wear.

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

Sourcing and Maintenance Tips

Prioritize original or NOS parts marked for AS 1456 to ensure precise fit and movement integrity.

Donor AS 1456 movements are invaluable for harvesting rare or worn components.

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

Use modern synthetic oils sparingly, aligning with vintage lubrication standards to maximize longevity.

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

Why AS 1456 Spare Parts Matter

Maintaining authentic or compatible parts preserves the movement’s historical reliability and accuracy.

Proper restoration sustains the collector appeal and vintage character of watches housing this calibre.

AS 1456 is documented within the vintage watch servicing community, facilitating sourcing and technical support.

Sourcing quality spare parts is essential for keeping the A. Schild AS 1456 manual-wind movement running reliably and authentically, preserving its legacy as a classic Swiss mechanical calibre.

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A. Schild (AS) Calibre 1475 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1475 is a vintage Swiss manual-wind mechanical movement produced between 1954 and 1974, renowned for its robust build and integrated alarm complication. It remains a classic choice for collectors and watchmakers restoring mid-20th-century wristwatches with alarm functions.
Key Technical Highlights

Calibre: AS 1475

Movement Type: Manual wind, mechanical with alarm

Diameter: 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: Approximately 46 hours

Functions: Hours, minutes, central seconds, 12-second alarm

Special Features: Two-barrel system (one for alarm, one for timekeeping), two crowns (one for winding/time-setting, one for alarm winding/setting)

Production Period: 1954–1974

Notable Models: Widely used in many vintage watches including brands like Buren, Tissot, Benrus, Bulova, and Girard Perregaux

Common Spare Parts and Service Components

Mainspring and Barrel: Two barrels require separate mainsprings; originals or precise replacements are critical for power and alarm function reliability.

Balance Wheel and Balance Staff: Essential for time accuracy; fragile parts that require correct sizing and shock protection compatibility.

Alarm Mechanism Components: Alarm spring, hammer, and other specialized alarm parts require exact matching for proper function.

Rotor and Automatic Components: N/A (manual wind movement)

Pallet Fork and Escape Wheel: Key escapement parts that wear over time and should be replaced with original or NOS parts.

Wheels (Minute, Third, Fourth): Wear-prone gear train wheels often sourced from donor movements or new-old-stock (NOS).

Stems and Crowns: Two distinct stems and crowns exist for alarm and time functions; exact counterparts necessary for reliable operation and setting.

Jewels: Replacement synthetic ruby bearings must match original count and placement for smooth operation.

Hands and Dial: Period-appropriate hands and dials keep restoration authentic and visually correct.

Sourcing and Maintenance Tips

Prioritize original or NOS spare parts specifically marked for AS 1475 to ensure proper fit and functionality.

Salvage donor movements for rare or worn alarm-specific components.

Handle alarm and time-setting assemblies carefully due to their complexity and the dual-crown interface.

Use modern synthetic lubricants sparingly, following traditional vintage watch maintenance guidelines.

Confirm the calibre number stamped on the main plate before ordering parts for compatibility.

Why AS 1475 Spare Parts Matter

Ensuring Reliability: Authentic parts guarantee consistent timekeeping and alarm functionality.

Maintaining Collector Value: Correct parts uphold the historical integrity and market appeal of vintage alarm watches.

Supporting Repairability: The AS 1475 remains one of the most widely produced and recognized vintage Swiss alarm movements, with robust documentation and enthusiast support.

Proper sourcing and servicing of spare parts keep the A. Schild AS 1475 a reliable and authentic mechanical alarm watch movement, preserving its legacy in Swiss horology.

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A. Schild (AS) Calibre 1506 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1506 is a vintage Swiss manual-wind mechanical movement, prized for its reliable construction, moderate size, and precise timekeeping. Produced around the mid-1950s, it is favored by collectors and watchmakers restoring classic wristwatches from that era.
Key Technical Highlights

Calibre: AS 1506

Movement Type: Manual wind, mechanical

Diameter: Approximately 23.7 mm (10.5 lignes)

Jewels: 17 synthetic ruby jewels

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

Lift Angle: 52 degrees

Power Reserve: Approximately 45 hours

Functions: Hours, minutes, direct central seconds

Period of Use: Around 1955

Common Spare Parts and Service Needs

Mainspring and Barrel: Essential for power storage and consistent energy delivery; replacements must match the AS 1506 specifications for proper function.

Balance Wheel and Balance Staff: Key precision components for accurate timekeeping; delicate parts that require exact sizing and compatible shock protection.

Pallet Fork and Escape Wheel: Wear-prone escapement parts that must be replaced with genuine or new-old-stock (NOS) components for reliable operation.

Gear Train Wheels (Minute, Third, Fourth): Commonly affected by wear or damage; sourced from donor movements or NOS parts.

Setting Mechanism (Stem, Crown, Setting Levers, Springs): Crucial for accurate winding and time setting; parts must exactly fit AS 1506 dimensions.

Jewels: Synthetic ruby bearings placed precisely to minimize friction and wear, replacements must match original configuration.

Hands and Dial Components: Period-correct or original parts maintain watch authenticity and collector value.

Sourcing and Maintenance Tips

Prioritize authentic or NOS spare parts specifically marked for AS 1506 to guarantee compatibility and maintain movement integrity.

Salvage donor AS 1506 movements for rare or worn components, especially balance assemblies and gear train parts.

Exercise careful handling during servicing due to the delicate nature of the balance and escapement assemblies.

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

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

Why AS 1506 Spare Parts Matter

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

Proper restoration upholds the watch’s collector appeal and authentic vintage character.

AS 1506 is well-documented in watchmaking resources, facilitating parts sourcing and technical support.

Keeping the A. Schild AS 1506 calibre properly serviced with quality spare parts is essential for preserving the legacy of these classic Swiss manual-wind watches, ensuring their ongoing reliable function and collectible status.

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A. Schild (AS) Calibre 1507 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1507 is a vintage Swiss manual-wind mechanical movement recognized for its robust construction, reliable sweeping seconds function, and compact design. Produced around the mid-1950s, this calibre remains popular with collectors and watchmakers focused on restoring classic mid-20th-century wristwatches.
Key Technical Highlights

Calibre: AS 1507

Movement Type: Manual wind, mechanical

Diameter: 25.60 mm (11.5 lignes)

Height: Approximately 4.07 mm

Jewels: 17 synthetic ruby jewels

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

Power Reserve: Approximately 45 hours

Functions: Hours, minutes, sweeping central seconds

Common Spare Parts and Service Needs

Mainspring and Barrel: Essential for reliable power transmission; replacements must match original dimensions and specifications to maintain consistent energy delivery.

Balance Wheel and Balance Staff: Crucial for timing precision; these delicate components require careful handling and exact dimension matching for shock protection compatibility.

Pallet Fork and Escape Wheel: Wear-prone escapement parts which require original or new-old-stock (NOS) replacements to ensure smooth operation.

Gear Train Wheels (Minute, Third, Fourth): These wheels commonly suffer from pivot wear or tooth damage; sourcing from donor movements or NOS parts is typical.

Setting Mechanism (Stem, Crown, Levers, Springs): Critical for winding and time setting; accurate fitting parts are necessary for proper function.

Jewels: Synthetic ruby bearings must match original placement and count to minimize friction and preserve movement longevity.

Hands and Dial Components: Period-correct or original parts maintain authenticity and collector value.

Sourcing and Maintenance Tips

Prioritize original, NOS, or donor parts designated for AS 1507 to ensure compatibility and preserve movement integrity.

Exercise care during servicing due to the movement’s relatively compact size and delicate balance components.

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

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

Why AS 1507 Spare Parts Matter

Using authentic or compatible parts preserves the movement’s accuracy, reliability, and historical value.

Proper restoration maintains the watch’s collector appeal and the vintage character of this classic Swiss calibre.

AS 1507 is documented in watchmaker resources, facilitating parts sourcing and technical support for repairs.

Keeping the A. Schild AS 1507 calibre serviced with quality spare parts is essential to sustain these elegant vintage watches’ reliable operation and collector status.