A Schild – AS Calibre 1931 Watch spare parts
| A Schild – AS Calibre 1931 – Part No. 100 plate |
| A Schild – AS Calibre 1931 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1931 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1931 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1931 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1931 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1931 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1931 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1931 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1931 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1931 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1931 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1931 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1931 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1931 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1931 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1931 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1931 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1931 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1931 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1931 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1931 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1931 – Part No. 425 Click |
| A Schild – AS Calibre 1931 – Part No. 430 Click spring |
| A Schild – AS Calibre 1931 – Part No. 435 Yoke |
| A Schild – AS Calibre 1931 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1931 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1931 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1931 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1931 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1931 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1931 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1931 – Part No. 770 Mainspring |
| A Schild – AS Calibre 1931 – Part No.7151 Unlockinq wheel holder |
| A Schild – AS Calibre 1931 – Part No.7153 Alarm barrel bridge |
| A Schild – AS Calibre 1931 – Part No.7182 Alarm barrel wilh cover |
| A Schild – AS Calibre 1931 – Part No.7196 Alarm barrel arbor |
| A Schild – AS Calibre 1931 – Part No.7288 Unlockinq wheel |
| A Schild – AS Calibre 1931 – Part No.7290 Alarm wheel |
| A Schild – AS Calibre 1931 – Part No.7296 lntermediate setting wheel for Alarm |
| A Schild – AS Calibre 1931 – Part No.7307 Alarm setting and winding rocker |
| A Schild – AS Calibre 1931 – Part No.7310 Spring for Alarm setting and winding |
| A Schild – AS Calibre 1931 – Part No.7311 Spring for Alarm setting conneciion wheel |
| A Schild – AS Calibre 1931 – Part No.7401 Alarm winding stem |
| A Schild – AS Calibre 1931 – Part No.7410 Alarm winding pinion |
| A Schild – AS Calibre 1931 – Part No.7417 Alarm ratchet wheel, lower |
| A Schild – AS Calibre 1931 – Part No.7418 Alarm ratchet wheel, upper |
| A Schild – AS Calibre 1931 – Part No.7421 Alarm crown wheel lower |
| A Schild – AS Calibre 1931 – Part No.7426 Alarm click |
| A Schild – AS Calibre 1931 – Part No.7436 Alarm click Spring |
| A Schild – AS Calibre 1931 – Part No.7443 Alarm setting lever |
| A Schild – AS Calibre 1931 – Part No.7444 Alarm setting lever Spring |
| A Schild – AS Calibre 1931 – Part No.7459 Disconnector |
A. Schild (AS) Calibre 1931 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1931 is a vintage Swiss manual-winding mechanical movement highly regarded for its reliability, classic design, and practical features. Primarily produced in the mid-20th century, this calibre is known for its sweep second, date complication, and a unique mechanical alarm function, making it a distinctive choice among collectors and watchmakers restoring classic vintage timepieces.
Key Technical Highlights
Calibre: AS 1931
Movement Type: Manual winding, mechanical with sweep seconds, date, and mechanical alarm
Diameter: 25.60 mm (11.5 lignes)
Height: Approximately 5.75 mm
Jewels: 17 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (3 Hz)
Power Reserve: About 50 hours
Alarm Duration: Approximately 12 seconds
Lift Angle: Around 52°
Additional Functions: Date quickset by changing time and mechanical alarm actuation
Common Spare Parts and Components
Mainspring and Barrel: Original or NOS mainsprings and barrels are recommended for consistent power delivery and maintaining alarm functionality.
Balance Wheel and Balance Staff: Precision parts critical for accurate timekeeping and shock resistance; exact fitting is required.
Alarm Mechanism Components: Specialized parts like alarm spring, hammer, and activating levers essential for proper alarm operation.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; sourcing original or NOS ensures smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Often replaced due to wear; may be sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Accurate fitting components ensure smooth winding, time setting, date adjustment, and alarm activation.
Jewels: Synthetic ruby bearings designed to reduce friction; replacements must strictly conform to original design.
Hands and Dial Components: Period-correct parts maintain the vintage authenticity and enhance collector value.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1931 to guarantee compatibility and preserve movement integrity.
Exercise caution when handling delicate components such as the alarm mechanism, balance assembly, escapement parts, and setting system during servicing.
Apply modern synthetic watch oils sparingly following vintage lubrication practices to ensure longevity and optimal functionality.
Verify the calibre number stamped on the movement main plate before ordering parts to avoid incompatibility.
Donor AS 1931 movements are invaluable sources for rare or worn components, especially alarm-related parts.
Why AS 1931 Spare Parts Matter
Genuine parts ensure the calibre’s accuracy, mechanical reliability, smooth manual winding, and uniquely, its mechanical alarm functionality, critical for dependable vintage watch performance.
Proper restoration with authentic components preserves the historical significance and collector value of these original Swiss manual-wind alarm watches.
Extensive technical documentation and a dedicated watchmaker community support efficient parts sourcing and expert servicing.
Maintaining the A. Schild AS 1931 calibre with high-quality, authentic spare parts is essential for ensuring these vintage mechanical alarm watches continue to run reliably while honoring their place in Swiss horological heritage.
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Stem, Crown, Hands & Spares might be available for this movement.
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