A Schild – AS Calibre 1001 Watch spare parts
| A Schild – AS Calibre 1001 – Part No. 100 plate |
| A Schild – AS Calibre 1001 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1001 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1001 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1001 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1001 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1001 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1001 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1001 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1001 – Part No. 22O Fourth wheel |
| A Schild – AS Calibre 1001 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1001 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1001 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1001 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1001 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1001 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1001 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1001 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1001 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1001 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1001 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1001 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1001 – Part No. 425 Click |
| A Schild – AS Calibre 1001 – Part No. 430 Click spring |
| A Schild – AS Calibre 1001 – Part No. 435 Yoke |
| A Schild – AS Calibre 1001 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1001 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1001 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1001 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1001 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1001 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1001 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1001 – Part No. 770 Mainspring |
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Stem, Crown, Hands & Spares might be available for this movement.
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A. Schild (AS) Calibre 1001 Watch Spare Parts: A Collector’s and Watchmaker’s Guide
A. Schild (AS) calibre 1001 is a vintage Swiss mechanical movement, primarily found in ladies’ wristwatches from the 1940s. Due to its age and historic value, sourcing spare parts requires an understanding of both technical specifications and what typical components may need servicing or replacement.
Key Technical Highlights
Caliber: AS 1001
Diameter: 17.1 mm (7 3/4’’’)
Height: 3.50 mm
Jewels: 7 or 17 (high-grade versions have extensive ruby bearings)
Beat Rate: 18,000 A/h
Escapement: Pallet lever (nickel screw balance)
Shock protection: None (common for the era)
Winding: Manual, yoke winding system
Production Era: 1940s, primarily for small/ladies’ watches
Common Spare Parts for AS 1001
Mainspring and Barrel: Essential for consistent power delivery—prone to fatigue in decades-old movements.
Balance Wheel & Hairspring: Vulnerable to shock and magnetism; can require re-poising or replacement.
Pallet Fork and Escape Wheel: Wear from high-beat rates may necessitate replacement, especially if teeth or pivots are damaged.
Winding and Setting Mechanisms: Includes the yoke, setting lever, and associated springs—frequent sources of wear.
Wheels (Minute, Third, Fourth): Loss of tooth integrity or pivots may call for donor wheels or new-old-stock (NOS) parts.
Jewels: Ruby bearings for the gear train are critical for smooth operation; some export variants have brass bushings instead.
Hands and Dials: Period-correct spares are needed for complete restorations, often custom-fitted or refurbished.
Sourcing & Interchangeability
Original Parts: Look for parts labeled specifically for AS 1001. Due to the small diameter and specific configuration, interchangeability with other A. Schild calibers is limited.
NOS & Donor Movements: Many watchmakers rely on salvaging parts from non-functional AS 1001 movements.
Aftermarket Availability: Some essential components (main springs, jewels) may be available as generic replacements owing to Swiss industry standards of the era, but compatibility should be verified by measurement.
Service Tips
No Shock Protection: Handle balance assemblies with extra care during disassembly to avoid further damage.
Lubrication: Use modern synthetic oils, but with restraint, given the movement’s age and original lubrication standards.
Identification: The caliber number is marked on the dial side, usually requiring dial removal for positive ID
A. Schild AS 1001 remains a testament to mid-century Swiss precision in small-scale movements. Watchmakers and collectors value these for their robust design, but careful sourcing and fitting of correct spare parts is essential to maintain authenticity and function.