A. Schild (AS) Calibre 5150 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 5150 is a Swiss manual-wind mechanical movement known for its reliability and precision. This calibre operates with 17 jewels, a beat rate of 21,600 vibrations per hour (3 Hz), and a power reserve of approximately 45 hours. It is favored by watchmakers and collectors for its robust performance and ease of maintenance.
Key Technical Highlights
Calibre: AS 5150
Movement Type: Manual winding, mechanical
Jewels: 17 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (3 Hz)
Power Reserve: Around 45 hours
Lift Angle: 53°
Functions: Hours, minutes, seconds
Common Spare Parts and Components
Mainspring and Barrel: New-old-stock (NOS) or genuine mainsprings maintain power consistency and durability.
Balance Wheel and Balance Staff: Critical for accurate timekeeping and shock resistance; authentic parts required.
Pallet Fork and Escape Wheel: Wear-prone escapement components; genuine or NOS replacements recommended.
Gear Train Wheels: Minute, third, and fourth wheels typically replaced due to wear and sourced from NOS or donor movements.
Setting Mechanism (Stem, Crown, Levers, Springs): Essential for smooth winding and time setting; must fit precisely.
Jewels: Synthetic ruby bearings reduce friction; replacement jewels must match original layout.
Hands and Dial Components: Authentic parts preserve vintage aesthetics and collector value.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically made for AS 5150 to ensure compatibility and durability.
Handle fragile components such as the balance and escapement with care during servicing.
Apply modern synthetic lubricants sparingly, following vintage watch servicing protocols.
Confirm the calibre number on the movement before ordering parts to avoid mistakes.
Donor movements are excellent sources for rare or discontinued spare parts.
Why AS 5150 Spare Parts Matter
Genuine parts preserve the calibre’s precision, durability, and smooth manual operation, critical for reliable vintage watch performance.
Authentic restoration maintains the historical significance and enhances collector appeal of this classic Swiss movement.
Detailed technical resources and watchmaker communities facilitate efficient repairs and sourcing.
Maintaining your A. Schild AS 5150 calibre with quality spare parts guarantees long-lasting performance and honors its place in horological history.
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Stem, Crown, Hands & Spares might be available for this movement.
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