A Schild – AS Calibre 1051 Watch spare parts
| A Schild – AS Calibre 1051 – Part No. 100 plate |
| A Schild – AS Calibre 1051 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1051 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1051 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1051 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1051 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1051 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1051 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1051 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1051 – Part No. 22O Fourth wheel |
| A Schild – AS Calibre 1051 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1051 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1051 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1051 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1051 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1051 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1051 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1051 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1051 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1051 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1051 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1051 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1051 – Part No. 425 Click |
| A Schild – AS Calibre 1051 – Part No. 430 Click spring |
| A Schild – AS Calibre 1051 – Part No. 435 Yoke |
| A Schild – AS Calibre 1051 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1051 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1051 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1051 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1051 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1051 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1051 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1051 – 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 1051 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1051 is a vintage Swiss manual-wind movement mainly used in ladies’ watches of the 1940s. Known for its compact, robust design and reliable operation, the AS 1051 requires specialized attention when sourcing genuine spare parts for restoration and maintenance.
Core Technical Highlights
Calibre: AS 1051
Dimensions: 5 3/4 x 8 3/4 lignes
Jewels: 15
Beat Rate: 18,000 A/h
Escapement: Pallet lever, nickel screw balance
Shock Protection: None
Regulation: Long regulator arm
Production Period: Mainly 1940s–1960s
Applications: Ladies’ manual-wind wristwatches
Common Spare Parts Needed
Mainspring:
Typical options include sizes like 1.50 x 0.075 x 280 x 7.5 mm, or minor variants depending on specific production runs
Balance Wheel & Hairspring:
Nickel screw type, vulnerable to shock; original replacements from donor movements are often required.
Pallet Fork & Escape Wheel:
Frequent wear due to absence of shock protection; high-precision Swiss replacements are critical.
Stem, Crown, and Setting Lever:
Setting mechanism components wear with age; spares sometimes sourced from other AS movements of similar size
Wheels (Minute, Third, Fourth):
These can develop damaged teeth or pivots; salvage or new-old-stock (NOS) parts recommended.
Jewels & Bearings:
Proper jewel count is important (typically 15); replacement jewels must be matched for fit and material.
Hands and Dials:
Period-correct spare hands and dials are rarely available new; most restored watches use spares or refinished vintage parts.
Sourcing and Interchangeability
Original AS 1051 Parts: Seek out parts labeled explicitly for AS 1051; many parts are unique due to movement size and construction
Donor Movements: The most common method for sourcing difficult components such as wheels, balance assemblies, or bridges.
Aftermarket Options: Limited for AS 1051, but basic parts like mainsprings and jewels may be available as generics—must check compatibility by precise measurement.
Watchmaker Networks & Collectors: Forums or specialist suppliers dealing in vintage Swiss parts may have limited stock.
Service Tips
Careful Handling: No shock protection—handle balance and escapement assemblies with great care during servicing
Lubrication: Use modern, light oils sparingly; original lubrication standards were minimal.
Identification: The calibre number is marked on the movement, usually under the dial, for proper identification before part ordering
A. Schild AS 1051 exemplifies mid-century Swiss technical excellence in small-form movements. Maintaining authenticity and performance requires careful restoration with period-accurate spare parts sourced either from NOS, donor movements, or specialized vintage suppliers