A. Schild (AS) Calibre 5154 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 5154 is a reliable Swiss mechanical movement known for its precision and durability. It typically features a manual winding mechanism, 17 jewels, a beat rate of 28,800 vibrations per hour (4 Hz), and a lift angle of 53°. This calibre is popular in vintage watches, appreciated for its accurate timekeeping and smooth operation.
Key Technical Highlights
Calibre: AS 5154
Movement Type: Manual winding, mechanical
Jewels: 17 synthetic ruby jewels
Beat Rate: 28,800 vibrations per hour (4 Hz)
Lift Angle: 53°
Functions: Hours, minutes, sweep seconds
Era: 1970s
Common Spare Parts and Components
Mainspring and Barrel: Original or New-Old-Stock (NOS) mainsprings ensure reliable power delivery and longevity.
Balance Wheel and Balance Staff: Crucial for precise timekeeping and shock resistance; use OEM or compatible parts.
Pallet Fork and Escape Wheel: Wear-prone escapement components requiring replacement with genuine or NOS parts.
Gear Train Wheels: Minute, third, and fourth wheels often replaced due to wear; sourced from original manufacturers or donor movements.
Setting Mechanism (Stem, Crown, Levers, Springs): Necessary for smooth operation and accurate winding/time setting; must fit precisely.
Jewels: Synthetic ruby bearings reduce friction and wear; replacement jewels must adhere to the original design.
Hands and Dial Components: Authentic parts preserve vintage aesthetics and add collector value.
Sourcing and Maintenance Tips
Always source original, NOS, or donor parts designed specifically for AS 5154 movements to ensure proper fit and function.
Handle delicate parts like the balance and escapement with care during repairs to avoid damage.
Use modern synthetic lubricants sparingly and follow watchmakers’ best practices for vintage movements.
Verify the calibre number on the movement before ordering parts to avoid incompatibility.
Donor AS 5154 movements provide excellent parts sources for rare components.
Why AS 5154 Spare Parts Matter
Genuine parts maintain the calibre’s accuracy, durability, and smooth manual winding, essential for reliable vintage watch operation.
Proper restoration preserves the historical and collector value of classic Swiss mechanical watches.
Extensive technical documentation and knowledgeable watchmaker networks support effective repairs and parts sourcing.
Maintaining your A. Schild AS 5154 calibre with authentic spare parts ensures long-lasting performance and honors its horological legacy.
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Stem, Crown, Hands & Spares might be available for this movement.
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