You can confirm the order by making a PayPal payment. My account email address is [email protected]
Watch Parts Enquiry
* If you are unable to fill out any of the required information fields, please type “N/A”.
Stem, Crown, Hands & Spares might be available for this movement.
Email us for rate and availability: [email protected]
A. Schild (AS) Calibre 1525 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1525 is a vintage Swiss manual-wind mechanical movement produced during the 1960s, known for its flat design, reliable timekeeping, and robust construction. This calibre is admired for its classical layout, featuring a sub-seconds function and 17 synthetic ruby jewels with Incabloc shock protection.
Key Technical Highlights
Calibre: AS 1525
Movement Type: Manual winding, mechanical
Diameter: 23.0 – 23.3 mm (10½ lignes)
Height: 2.8 mm (very flat profile)
Jewels: 17 (some variations up to 21 jewels)
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: Approx. 44 hours
Functions: Hours, minutes, sub-seconds
Shock Protection: Incabloc system
Winding System: Yoke winding mechanism
Common Spare Parts and Components
Mainspring and Barrel: Critical for maintaining stable power delivery; exact replacements ensure consistent torque.
Balance Wheel and Balance Staff: Precision parts vital for accuracy; delicate and require original or compatible parts considering shock protection.
Pallet Fork and Escape Wheel: Frequently worn escapement components needing genuine or new-old-stock (NOS) replacements.
Gear Train Wheels: Including center, third, and fourth wheels; prone to wear and sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Setting Lever, Springs): Essential for winding and time-setting; must fit exact AS 1525 dimensions.
Jewels: Synthetic ruby bearings placed to minimize friction; replacements must match original count and placement.
Hands and Dial: Period-appropriate parts preserve vintage authenticity during restoration.
Sourcing and Maintenance Tips
Use original or NOS spare parts marked specifically for AS 1525 to ensure proper fit and preserve movement integrity.
Salvage donor movements are valuable sources for rare or worn components such as balance assemblies and gear wheels.
Handle delicate balance and escapement assemblies with care during servicing.
Apply modern synthetic oils sparingly, following vintage watch lubrication standards for longevity.
Confirm the calibre number stamped on the main plate before ordering parts to prevent incompatibility.
Why AS 1525 Spare Parts Matter
Maintaining genuine or precise compatible parts preserves movement accuracy, reliability, and durability.
Proper repairs uphold collector value and preserve the historical and mechanical integrity of vintage Swiss watches.
The AS 1525 remains a respected calibre among watchmakers, facilitating availability of technical data and parts.
This ensures that A. Schild AS 1525 watches continue to run reliably and authentically for collectors and enthusiasts alike.