A. Schild (AS) Calibre 5201 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 5201 is a Swiss manual winding mechanical movement celebrated for its accuracy, robust design, and reliability. It is a popular calibre from the mid-1970s widely used in many vintage wristwatches.
Key Technical Highlights
Calibre: AS 5201
Movement Type: Manual winding, mechanical
Diameter: 27.6 mm (12 lignes)
Jewels: 17 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (3 Hz)
Power Reserve: Approximately 47 hours
Lift Angle: 50°
Period of Usage: Circa 1975
Common Spare Parts and Components
Mainspring and Barrel: Original or New-Old-Stock (NOS) mainsprings ensure consistent power and durability.
Balance Wheel and Balance Staff: Precision parts critical for accurate timekeeping and shock resistance; exact fitted replacements are essential.
Pallet Fork and Escape Wheel: Wear-prone escapement components; genuine or NOS replacements recommended for smooth operation.
Gear Train Wheels: Minute, third, and fourth wheels commonly replaced due to wear; sourced from NOS or donor movements.
Setting Mechanism (Stem, Crown, Levers, Springs): Well-fitting parts are necessary for smooth winding and time setting.
Jewels: Synthetic ruby bearings reduce friction and wear; replacement jewels must follow original layout.
Hands and Dial Components: Authentic parts maintain vintage aesthetic and collector value.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts designed specifically for AS 5201 to guarantee compatibility and performance.
Handle delicate components such as balance and escapement carefully during servicing.
Use modern synthetic lubricants sparingly and according to vintage watch maintenance standards.
Verify the calibre number engraved on the movement before ordering parts to avoid compatibility issues.
Donor AS 5201 movements can serve as valuable sources for rare or discontinued components.
Why AS 5201 Spare Parts Matter
Genuine components maintain the calibre’s accuracy, durability, and smooth manual winding, essentials for reliable vintage watch operation.
Authentic restorations preserve the historical significance and enhance collector appeal of these classic Swiss movements.
Detailed technical documentation and active watchmaker networks facilitate effective repairs and sourcing.
Maintaining your A. Schild AS 5201 calibre with quality spare parts ensures long-lasting performance and honors its horological heritage.
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Stem, Crown, Hands & Spares might be available for this movement.
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