A. Schild (AS) Calibre 1916 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1916 is a vintage Swiss automatic mechanical movement known for its robust construction, practical complications, and reliable performance. Manufactured primarily in the 1960s and early 1970s, it features sweep seconds, day and date functions with a quickset date mechanism activated by repeated pushing of the crown. This calibre is favored by collectors and watchmakers for restoring classic automatic wristwatches.
Key Technical Highlights
Calibre: AS 1916
Movement Type: Automatic, mechanical
Diameter: 25.60 mm (11.5 lignes)
Height: 5.95 mm
Jewels: 17, 21, or 25 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (3 Hz)
Power Reserve: Approximately 44 hours
Functions: Hours, minutes, sweep seconds, day, and quickset date (via repeated crown pushing)
Shock Protection: Vintage anti-shock system, typically Incabloc
Lift Angle: Approximately 52°
Common Spare Parts and Components
Mainspring and Barrel: Original or new-old-stock (NOS) mainsprings ensure steady and reliable power delivery.
Balance Wheel and Balance Staff: Precision parts essential for accurate timekeeping and shock resistance; exact fit is critical.
Rotor Assembly and Bearings: Crucial for smooth automatic winding; worn rotors and bearings should be replaced with genuine or NOS parts.
Pallet Fork and Escape Wheel: Escapement components prone to wear; sourcing original or NOS parts maintains smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Often replaced due to wear; usually sourced from donor movements or NOS inventory.
Setting Mechanism (Stem, Crown, Levers, Springs): Accurate fitting parts ensure smooth winding, time, day, and quickset date adjustments; winding stems like Part No. 401 are commonly compatible.
Jewels: Synthetic ruby bearings arranged to reduce friction; replacements must correspond exactly to the original layout.
Hands and Dial Components: Period-correct parts help maintain vintage authenticity and enhance collector appeal.
Day and Date Components: Includes date indicator guards, date jumpers, unlocking yokes, and day star parts essential for calendar function reliability.
Sourcing and Maintenance Tips
Always use original, NOS, or donor parts specifically designated for AS 1916 to ensure perfect compatibility and maintain quality.
Handle delicate components such as the balance, escapement, rotor, and calendar parts carefully during servicing to prevent damage.
Apply modern synthetic watch oils sparingly, following vintage lubrication standards for optimum longevity and function.
Verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor AS 1916 movements are excellent sources for rare or worn components.
Why AS 1916 Spare Parts Matter
Authentic parts preserve the calibre’s accuracy, reliability, efficient automatic winding, and smooth calendar function, critical for dependable vintage watch performance.
Proper restoration with genuine components safeguards the historical significance and collector value of these classic Swiss automatic movements.
Detailed technical documentation and an active watchmaker community facilitate efficient parts sourcing and expert repairs.
Maintaining the A. Schild AS 1916 calibre with high-quality, authentic spare parts ensures these vintage automatic 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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