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A. Schild (AS) Calibre 1886 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1886 is a vintage Swiss automatic mechanical movement known for its robust construction, reliable performance, and practical complications. Produced around the mid-1960s, this calibre features automatic winding, sweep seconds, and day-date functions, making it a versatile choice for mid-20th-century wristwatches.
Key Technical Highlights
Calibre: AS 1886
Movement Type: Automatic, mechanical
Diameter: Approximately 26 mm (11.5 lignes)
Height: About 5.25 mm
Jewels: 17, 21, or 25 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (vph)
Power Reserve: Around 42 hours
Functions: Hours, minutes, sweep seconds, day and date (date set by changing time between 20:20 and midnight)
Shock Protection: Vintage anti-shock system (commonly Incabloc)
Rotor: Ball-bearing type for smooth automatic winding
Notable Features: Large balance wheel and indirect minute hand drive for smooth motion
Common Spare Parts and Components
Mainspring and Barrel: Ensure consistent power delivery; original or new-old-stock (NOS) mainsprings maintain torque and durability.
Balance Wheel and Balance Staff: Precision parts critical for accurate timekeeping and shock resistance; must fit exactly.
Rotor Assembly and Bearings: Central to efficient automatic winding; worn components need genuine or high-quality NOS replacements.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; sourcing original or NOS components preserves smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Frequently 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 day/date adjustments.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacements must match original layout.
Hands and Dial Components: Period-accurate parts uphold vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1886 to ensure compatibility and preserve movement integrity.
Handle delicate components such as balance assemblies, escapement, and rotor carefully during servicing.
Apply modern synthetic watch oils sparingly, adhering to vintage lubrication standards for longevity and optimal performance.
Always verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor AS 1886 movements are valuable sources for rare or worn components.
Why AS 1886 Spare Parts Matter
Genuine parts preserve the calibre’s accuracy, reliability, and efficient automatic winding, vital for dependable daily wear.
Proper restoration with authentic components maintains the historical significance and collectible value of these classic Swiss automatics.
Extensive technical documentation and an active watchmaker community support efficient parts sourcing and expert repairs.
Maintaining the A. Schild AS 1886 calibre with quality spare parts is essential to ensure these vintage automatic wristwatches continue to perform 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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