A. Schild (AS) Calibre 5005 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 5005 is a distinguished Swiss automatic mechanical movement featuring a day-date complication along with an alarm function. Part of the notable AS 5000 family produced in the 1970s, the calibre is recognized for its reliability, high frequency, and multiple crown functions designed for precise time and alarm setting.
Key Technical Highlights
Calibre: AS 5005
Movement Type: Automatic, mechanical
Diameter: 30.00 mm (13.25 lignes)
Height: Approximately 6.00 mm
Jewels: Usually 17, 21, or 25 synthetic ruby jewels
Beat Rate: 28,800 vibrations per hour (4 Hz)
Functions: Hours, minutes, sweep seconds, alarm, day and date display, hacking seconds
Power Reserve: Approx. 40-49 hours
Era: 1970s
Common Spare Parts and Components
Mainspring and Barrel: Original or New-Old-Stock (NOS) parts to maintain consistent power delivery.
Balance Wheel and Balance Staff: Crucial for precision timekeeping and shock resistance; exact fits needed.
Alarm Mechanism Parts: Specialized alarm barrels, hammers, ratchets, and gongs unique to AS 5005’s alarm system.
Pallet Fork and Escape Wheel: Key escapement components that require genuine or NOS replacements.
Gear Train Wheels: Minute, third, and fourth wheels often replaced, commonly sourced from NOS or donor movements.
Setting Mechanism (Stems, Crowns, Levers, Springs): Accurate fit crucial for smooth setting of time, alarm, day, and date.
Jewels: Synthetic ruby bearings that reduce friction and wear; replacements need to match original layout.
Hands and Dial Components: Authentic parts preserve vintage aesthetics and collector value.
Sourcing and Maintenance Tips
Always use original, NOS, or donor parts specifically intended for AS 5005 for guaranteed compatibility and performance.
Handle alarm mechanism and balance components with care during repair and servicing.
Follow vintage lubrication protocols using modern synthetic oils sparingly.
Confirm the calibre number on the movement before ordering parts to avoid mistakes.
Donor movements from the AS 5000 family serve as excellent parts sources.
Why AS 5005 Spare Parts Matter
Genuine parts retain the calibre’s accuracy, reliable alarm function, and day-date complications, vital for dependable vintage watch operation.
Proper restoration protects the historical significance and enhances collector appeal of these sought-after Swiss movements.
Comprehensive technical archives and watchmaker communities facilitate efficient parts sourcing and expert servicing.
Maintaining your A. Schild AS 5005 calibre with authentic spare parts ensures reliable performance and honors Swiss horological craftsmanship.
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Stem, Crown, Hands & Spares might be available for this movement.
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