A Schild – AS Calibre 1780 Watch spare parts
| A Schild – AS Calibre 1780 – Part No. 100 plate |
| A Schild – AS Calibre 1780 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1780 – Part No. 118 Combined bridge |
| A Schild – AS Calibre 1780 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1780 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1780 – Part No. 163/1 Center pipe |
| A Schild – AS Calibre 1780 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1780 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1780 – Part No. 200/1 Large driving wheel |
| A Schild – AS Calibre 1780 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1780 – Part No. 227 Sweep second wheel |
| A Schild – AS Calibre 1780 – Part No. 240 Cannon pinion with clam notch |
| A Schild – AS Calibre 1780 – Part No. 243 Cannon pinion without clam notch |
| A Schild – AS Calibre 1780 – Part No. 255 Hour wheel |
| A Schild – AS Calibre 1780 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1780 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1780 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1780 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1780 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1780 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1780 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1780 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1780 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1780 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1780 – Part No. 425 Click |
| A Schild – AS Calibre 1780 – Part No. 430 Click spring |
| A Schild – AS Calibre 1780 – Part No. 435 Yoke |
| A Schild – AS Calibre 1780 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1780 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1780 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1780 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1780 – Part No. 468 Cannon pinion guard |
| A Schild – AS Calibre 1780 – Part No. 482 Setting lever return-spring |
| A Schild – AS Calibre 1780 – Part No. 703 Escape wheel and pinion |
| A Schild – AS Calibre 1780 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1780 – Part No. 714 Pallet staff |
| A Schild – AS Calibre 1780 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1780 – Part No. 730 Roller |
| A Schild – AS Calibre 1780 – Part No. 770 Mainspring |
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A. Schild (AS) Calibre 1780 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1780 is a vintage Swiss manual-wind mechanical movement well-regarded for its compact size, high-beat accuracy, and reliable construction. It measures approximately 8.75 lignes (around 19.4 mm) in diameter and is favored for small wristwatches requiring precise timekeeping. The calibre runs at a beat rate of 21,600 vibrations per hour (vph) and typically features 17 synthetic ruby jewels with a power reserve of about 38 hours.
Key Technical Highlights
Calibre: AS 1780
Movement Type: Manual winding, mechanical with sweep seconds
Diameter: 8.75 lignes (~19.4 mm)
Beat Rate: 21,600 vph
Jewels: 17 synthetic ruby jewels (sometimes 21 in variants)
Power Reserve: Approximately 38 hours
Shock Protection: Incabloc anti-shock system
Balance: Nickel anular balance with clockwise hairspring, moveable stud
Lift Angle: 52°
Functions: Hours, minutes, sweep seconds
Common Spare Parts and Components
Mainspring and Barrel: Essential for consistent power and torque; replacement parts should match original specs for reliable function.
Balance Wheel and Balance Staff: Precision components critical for maintaining accurate timekeeping and shock resistance; require exact fit and quality replacements.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; optimal to use original or high-quality new-old-stock (NOS) components.
Gear Train Wheels (Minute, Third, Fourth): Frequently replaced due to wear; typically sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Require accurate fitting to ensure smooth winding, time setting, and hand adjustment.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacements must follow the original layout.
Hands and Dial Components: Period-correct parts help preserve vintage authenticity and collector value.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1780 to ensure proper compatibility and maintain movement integrity.
Handle fragile components, particularly balance assembly and escapement parts, with great care during servicing.
Apply modern synthetic watch oils sparingly, adhering to vintage lubrication standards for maximum longevity and performance.
Always verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor AS 1780 movements can provide valuable sources for rare or worn components.
Why AS 1780 Spare Parts Matter
Authentic parts preserve the calibre’s high-beat accuracy, reliability, and mechanical durability, key for precise performance.
Proper restoration with genuine components sustains the historical significance and collector appeal of these classic compact manual-wind watches.
The detailed technical documentation and active watchmaker community facilitate efficient parts sourcing and expert repair.
Maintaining the A. Schild AS 1780 calibre with quality spare parts ensures these refined vintage manual-wind movements continue to perform reliably while honoring their heritage in Swiss horology.