A Schild – AS Calibre 1200 Watch spare parts
| A Schild – AS Calibre 1200 – Part No. 100 plate |
| A Schild – AS Calibre 1200 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1200 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1200 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1200 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1200 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1200 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1200 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1200 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1200 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1200 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1200 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1200 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1200 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1200 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1200 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1200 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1200 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1200 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1200 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1200 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1200 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1200 – Part No. 425 Click |
| A Schild – AS Calibre 1200 – Part No. 430 Click spring |
| A Schild – AS Calibre 1200 – Part No. 435 Yoke |
| A Schild – AS Calibre 1200 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1200 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1200 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1200 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1200 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1200 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1200 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1200 – Part No. 770 Mainspring |
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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.