A Schild – AS Calibre 1749 Watch spare parts
| A Schild – AS Calibre 1749 – Part No. 100 plate (NOS) |
| A Schild – AS Calibre 1749 – Part No. 105 Barrel bridge (NOS) |
| A Schild – AS Calibre 1749 – Part No. 118 Combined bridge (NOS) |
| A Schild – AS Calibre 1749 – Part No. 121 Balance cock (NOS) |
| A Schild – AS Calibre 1749 – Part No. 125 Pallet cock (NOS) |
| A Schild – AS Calibre 1749 – Part No. 163/1 Center pipe (NOS) |
| A Schild – AS Calibre 1749 – Part No. 182 Barrel and cover (NOS) |
| A Schild – AS Calibre 1749 – Part No. 195 Barrel arbor (NOS) |
| A Schild – AS Calibre 1749 – Part No. 200/1 Large driving wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 210 Third wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 227 Sweep second wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 240 Cannon pinion with clam notch (NOS) |
| A Schild – AS Calibre 1749 – Part No. 243 Cannon pinion without clam notch (NOS) |
| A Schild – AS Calibre 1749 – Part No. 255 Hour wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 260 Minute wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 301 Regulator for flat hairspring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 311 Upper cap jewel with end-piece, for balance (NOS) |
| A Schild – AS Calibre 1749 – Part No. 330 Lower cap jewel with end-piece,for balance (NOS) |
| A Schild – AS Calibre 1749 – Part No. 401 Winding stem (NOS) |
| A Schild – AS Calibre 1749 – Part No. 407 Clutch wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 410 Winding pinion (NOS) |
| A Schild – AS Calibre 1749 – Part No. 415 Ratchet wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 420 Crown wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 422 Crown wheel ring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 425 Click (NOS) |
| A Schild – AS Calibre 1749 – Part No. 430 Click spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 435 Yoke (NOS) |
| A Schild – AS Calibre 1749 – Part No. 440 Yoke spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 443 Setting lever (NOS) |
| A Schild – AS Calibre 1749 – Part No. 445 Setting Iever spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 450 Setting wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 468 Cannon pinion guard (NOS) |
| A Schild – AS Calibre 1749 – Part No. 482 Setting lever return-spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 703 Escape wheel and pinion (NOS) |
| A Schild – AS Calibre 1749 – Part No. 710 Jewelled pallet fork (NOS) |
| A Schild – AS Calibre 1749 – Part No. 714 Pallet staff (NOS) |
| A Schild – AS Calibre 1749 – Part No. 721 Complete Balance (NOS) |
| A Schild – AS Calibre 1749 – Part No. 730 Roller (NOS) |
| A Schild – AS Calibre 1749 – Part No. 770 Mainspring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 775 Brake spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1141/1 Lower bridge for automatic device (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1142 Upper bridge for automatic device (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1143/1 Oscillating weight, mounted (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1428 Stop click (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1480 Winding-up wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1482 Driving gear for crown wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1488 Pawl winding wheel, complete (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1491Oscillating weight bolt |
| A Schild – AS Calibre 1749 – Part No. 1496 Oscillating weight axle (NOS) |
| A Schild – AS Calibre 1749 – Part No. 1555 Bolt for winding-up wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2535 Date indicator guard (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2555 Calendar driving wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2557 Date indicator (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2558 Double-toothing hour wheel (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2561/2 Day star with disk not transferred (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2575 Date Jumper spring (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2576 Date Jumper (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2577 Day jumper (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2608 Unlocking yoke lever (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2632/1 Unlocking yoke for date indicator, mounted (NOS) |
| A Schild – AS Calibre 1749 – Part No. 2633 Unlocking yoke for date indicator (NOS) |
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A. Schild (AS) Calibre 1749 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1749 is a vintage Swiss automatic mechanical movement known for its reliable automatic winding system, sweep seconds hand, and date complication. It is an extension of the AS 1748 calibre, featuring a date mechanism and a single-direction (counterclockwise) winding module. This calibre measures approximately 25.60 mm (11.5 lignes) in diameter with a height of about 4.60 mm. It operates at a beat rate of 18,000 vibrations per hour (vph) and incorporates a sophisticated pallet lever escapement with 25 synthetic ruby jewels for reduced friction and enhanced durability.
Key Technical Highlights
Calibre: AS 1749
Movement Type: Automatic, mechanical with sweep seconds and date
Diameter: 25.60 mm (11.5 lignes)
Height: 4.60 mm
Jewels: 25 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Shock Protection: Incabloc anti-shock system
Lift Angle: 52°
Balance: Nickel anular balance with clockwise hairspring and movable stud
Date Setting: By changing time between 20:20 and midnight
Winding Module: Single direction (winds counterclockwise)
Common Spare Parts and Components
Mainspring and Barrel: Must precisely match original specifications for reliable torque and power reserve.
Balance Wheel and Balance Staff: Precision components requiring exact fit and quality replacement for accurate timekeeping.
Rotor Assembly and Bearings: Critical for automatic winding efficiency; worn parts must be replaced with compatible originals or high-quality NOS.
Pallet Fork and Escape Wheel: Wear-prone escapement components needing original or NOS replacements to maintain smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Commonly replaced due to wear; sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely for smooth winding, time, and date setting operations. Compatible Swiss-made winding stems are available.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacement jewels must correspond to original layout and count.
Hands and Dial Components: Period-appropriate parts help maintain vintage authenticity and collector value.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts labeled for AS 1749 to ensure perfect compatibility and maintain movement integrity.
Handle delicate components such as the balance wheel, escapement, and rotor assembly carefully during servicing.
Apply modern synthetic watch oils sparingly according to vintage lubrication standards to optimize longevity and performance.
Verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor AS 1749 movements are valuable sources for hard-to-find or worn components.
Why AS 1749 Spare Parts Matter
Genuine spare parts preserve the calibre’s accuracy, automatic winding reliability, and mechanical durability essential for dependable function.
Proper restoration with authentic parts maintains the historical significance and collector appeal of these classic Swiss automatic watches.
The detailed technical documentation and active vintage watchmaker community support efficient parts sourcing and expert servicing.
Maintaining the A. Schild AS 1749 calibre with quality spare parts is vital for preserving the performance and heritage of these distinguished vintage automatic wristwatches.