A Schild – AS Calibre 1692 Watch spare parts
| A Schild – AS Calibre 1692 – Part No. 100 plate |
| A Schild – AS Calibre 1692 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1692 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1692 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1692 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1692 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1692 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1692 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1692 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1692 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1692 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1692 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1692 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1692 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1692 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1692 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1692 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1692 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1692 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1692 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1692 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1692 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1692 – Part No. 425 Click |
| A Schild – AS Calibre 1692 – Part No. 430 Click spring |
| A Schild – AS Calibre 1692 – Part No. 435 Yoke |
| A Schild – AS Calibre 1692 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1692 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1692 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1692 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1692 – Part No. 704 Escape wheel and pinion |
| A Schild – AS Calibre 1692 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1692 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1692 – Part No. 770 Mainspring |
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A. Schild (AS) Calibre 1691 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1691 is a vintage Swiss manual-wind mechanical movement known for its reliability and classic design. It features a diameter of approximately 23.3 mm (10.5 lignes) and operates at a beat rate of 18,000 vibrations per hour (vph), with a power reserve of around 50 hours. This calibre commonly has 21 synthetic ruby jewels and includes a lift angle of 52 degrees, prized by collectors and watchmakers for restoration projects of mid-20th-century wristwatches.
Key Technical Highlights
Calibre: AS 1691
Movement Type: Manual winding, mechanical
Diameter: Approximately 23.3 mm (10.5 lignes)
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: Around 50 hours
Jewels: Typically 21 synthetic ruby jewels
Lift Angle: 52 degrees
Functions: Hours, minutes, sub-seconds (typical for the calibre size)
Shock Protection: Included to enhance durability
Common Spare Parts and Components
Mainspring and Barrel: Key for storing power and delivering consistent torque; replacements must fit original specifications closely to ensure performance and longevity.
Balance Wheel and Balance Staff: Delicate, precision parts vital for accurate timekeeping and shock resistance; require exact fit and quality replacements.
Pallet Fork and Escape Wheel: Wear-prone escapement components essential for movement smoothness; sourcing original or quality new-old-stock (NOS) parts is advised.
Gear Train Wheels (Minute, Third, Fourth): Commonly subject to wear or damage; donor movements or NOS stock are typical sources.
Setting Mechanism (Stem, Crown, Levers, Springs): Must precisely fit for reliable winding and time-setting functions.
Jewels: Synthetic ruby bearings must match original number and placement to reduce friction and increase movement durability.
Hands and Dial Components: Period-correct or original parts maintain the watch’s vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts explicitly marked for AS 1691 to ensure compatibility and preserve movement integrity.
Handle delicate components, especially balance wheel and escapement, with care during servicing.
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 parts to avoid mismatches.
Why AS 1691 Spare Parts Matter
Genuine parts maintain the calibre’s accuracy, reliability, and mechanical longevity, critical for proper functioning and collector value.
Authentic restoration supports the historical significance and vintage character of these classic Swiss manual-wind movements.
Well-documented technical specs and community resources facilitate sourcing and expert servicing for AS 1691 watches.
Maintaining the A. Schild AS 1691 calibre with quality spare parts is essential to keep these vintage manual-wind watches running reliably and preserving their traditional Swiss horological heritage.