A Schild – AS Calibre 1799 Watch spare parts
| A Schild – AS Calibre 1799 – Part No. 100 plate |
| A Schild – AS Calibre 1799 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1799 – Part No. 118 Combined bridge |
| A Schild – AS Calibre 1799 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1799 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1799 – Part No. 163/1 Center pipe |
| A Schild – AS Calibre 1799 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1799 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1799 – Part No. 200/1 Large driving wheel |
| A Schild – AS Calibre 1799 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1799 – Part No. 227 Sweep second wheel |
| A Schild – AS Calibre 1799 – Part No. 240 Cannon pinion with clam notch |
| A Schild – AS Calibre 1799 – Part No. 243 Cannon pinion without clam notch |
| A Schild – AS Calibre 1799 – Part No. 255 Hour wheel |
| A Schild – AS Calibre 1799 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1799 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1799 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1799 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1799 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1799 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1799 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1799 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1799 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1799 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1799 – Part No. 425 Click |
| A Schild – AS Calibre 1799 – Part No. 430 Click spring |
| A Schild – AS Calibre 1799 – Part No. 435 Yoke |
| A Schild – AS Calibre 1799 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1799 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1799 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1799 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1799 – Part No. 468 Cannon pinion guard |
| A Schild – AS Calibre 1799 – Part No. 482 Setting lever return-spring |
| A Schild – AS Calibre 1799 – Part No. 703 Escape wheel and pinion |
| A Schild – AS Calibre 1799 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1799 – Part No. 714 Pallet staff |
| A Schild – AS Calibre 1799 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1799 – Part No. 730 Roller |
| A Schild – AS Calibre 1799 – Part No. 770 Mainspring |
| A Schild – AS Calibre 1799 – Part No. 775 Brake spring |
| A Schild – AS Calibre 1799 – Part No. 1141/1 Lower bridge for automatic device |
| A Schild – AS Calibre 1799 – Part No. 1142 Upper bridge for automatic device |
| A Schild – AS Calibre 1799 – Part No. 1143/1 Oscillating weight, mounted |
| A Schild – AS Calibre 1799 – Part No. 1428 Stop click |
| A Schild – AS Calibre 1799 – Part No. 1480 Winding-up wheel |
| A Schild – AS Calibre 1799 – Part No. 1482 Driving gear for crown wheel |
| A Schild – AS Calibre 1799 – Part No. 1488 Pawl winding wheel, complete |
| A Schild – AS Calibre 1799 – Part No. 1491Oscillating weight bolt |
| A Schild – AS Calibre 1799 – Part No. 1496 Oscillating weight axle |
| A Schild – AS Calibre 1799 – Part No. 1555 Bolt for winding-up wheel |
| A Schild – AS Calibre 1799 – Part No. 2535 Date indicator guard |
| A Schild – AS Calibre 1799 – Part No. 2543 lntermediate date wheel |
| A Schild – AS Calibre 1799 – Part No. 2557 Date indicator |
| A Schild – AS Calibre 1799 – Part No. 2558 Double-toothing hour wheel |
| A Schild – AS Calibre 1799 – Part No. 2575 Date Jumper spring |
| A Schild – AS Calibre 1799 – Part No. 2576 Date Jumper |
| A Schild – AS Calibre 1799 – Part No. 2632/1 Unlocking yoke for date indicator, mounted |
| A Schild – AS Calibre 1799 – Part No. 2633 Unlocking yoke for date indicator |
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A. Schild (AS) Calibre 1789 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1789 is a vintage Swiss automatic mechanical movement known for its compact design, reliability, and useful complications. Produced predominantly in the 1960s, it features automatic winding, sweep seconds, a date function, and a 24-hour display. Its robust construction makes it popular among collectors and watchmakers restoring mid-century wristwatches.
Key Technical Highlights
Calibre: AS 1789
Movement Type: Automatic, mechanical
Diameter: Approximately 26 mm (11.5 lignes)
Height: Around 5.25 mm
Jewels: 17, 21, or 25 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: About 41 hours
Functions: Hours, minutes, sweep seconds, date, 24-hour display
Shock Protection: Vintage Incabloc or similar anti-shock system
Date Setting: Typically set by adjusting time between 8:30 PM and midnight
Notable Features: Early fixed stud and later mobile stud carrier design variants
Common Spare Parts and Components
Mainspring and Barrel: Ensure stable power delivery; replacements should match original specs for torque and duration.
Balance Wheel and Balance Staff: Precision components vital for accurate timekeeping and shock resistance; exact fit is essential.
Rotor Assembly and Bearings: Critical for smooth automatic winding; worn parts require quality original or NOS replacements.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; sourcing genuine or high-grade NOS is vital for smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Typical replacements due to wear; sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely for smooth winding, time, date, and 24-hour display adjustments.
Jewels: Synthetic ruby bearings positioned to minimize friction; replacements must align exactly with the original layout.
Hands and Dial Components: Period-correct parts help maintain vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1789 to ensure compatibility and maintain movement quality.
Handle delicate parts such as balance assembly, escapement, and rotor carefully during servicing.
Apply modern synthetic watch oils sparingly, following vintage lubrication standards for longevity and performance.
Always verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor AS 1789 movements are invaluable for sourcing rare or worn components.
Why AS 1789 Spare Parts Matter
Authentic parts maintain the calibre’s accuracy, reliability, and automatic winding efficiency, crucial for consistent performance and collector value.
Proper restoration using genuine components preserves the historical significance and vintage appeal of these classic Swiss automatic watches.
Detailed technical documentation and an active watchmaker community facilitate trusted parts sourcing and expert repairs.
Maintaining the A. Schild AS 1789 calibre with quality spare parts is essential for ensuring these distinguished vintage automatic wristwatches continue to perform reliably while honoring their legacy in Swiss horology.