A. Schild (AS) Calibre 1863 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1863 is a vintage Swiss manual-wind mechanical chronograph movement known for its precision, reliability, and robust construction. It is closely related to the Omega Calibre 1863, which is a premium hand-wound chronograph movement featuring high-quality finishing and components. The AS 1863 is prized among collectors and watchmakers for its durability and classic chronograph functions.
Key Technical Highlights
Calibre: AS 1863
Movement Type: Manual winding, mechanical chronograph
Diameter: Approximately 26 mm (11.5 lignes)
Jewels: 17, 21, or 25 synthetic ruby jewels (variants exist)
Beat Rate: 21,600 vibrations per hour (vph)
Power Reserve: About 42 to 48 hours
Functions: Chronograph with central seconds, minutes counter, hours, minutes, sweep seconds
Shock Protection: Vintage anti-shock system (commonly Incabloc)
Other: Rhodium or similar high-grade finishing in some versions; Breguet hairspring used
Common Spare Parts and Components
Mainspring and Barrel: Critical for steady and reliable power delivery; original or new-old-stock (NOS) mainsprings recommended to maintain torque and longevity.
Balance Wheel and Balance Staff: Precision components essential for accurate timing and shock resistance; must fit exactly to preserve reliability.
Chronograph Mechanism Parts: Include column wheel, coupling lever, chronograph brake, and minute recorder parts; sourcing authentic or high-quality NOS parts is vital for smooth chronograph function.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; genuine or NOS replacements ensure smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Frequently replaced parts due to wear or damage; typically sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Precisely fitting parts needed for smooth winding, time setting, and chronograph control. Winding stems like Part No. 401 are compatible.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacements must match original layout for optimal movement integrity.
Hands and Dial Components: Period-correct parts maintain vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1863 to ensure perfect compatibility and maintain the movement’s integrity.
Handle delicate chronograph components and the balance assembly with care during servicing to avoid damage.
Apply modern synthetic watch oils sparingly, following vintage lubrication standards to optimize longevity and performance.
Always confirm the calibre number stamped on the main plate before ordering parts to avoid fitting errors.
Donor AS 1863 or compatible Lemania-based movements can be valuable sources for rare or worn components.
Why AS 1863 Spare Parts Matter
Authentic spare parts preserve the calibre’s chronograph precision, mechanical reliability, and durability, essential for dependable everyday use and collector value.
Proper restoration using genuine components helps maintain the historical significance and aesthetic appeal of these vintage Swiss manual-wind chronographs.
Technical documentation and active watchmaker communities make sourcing parts and expert servicing more efficient.
Maintaining the A. Schild AS 1863 calibre with high-quality, authentic spare parts ensures these distinguished vintage chronographs continue to perform reliably while honoring their place in Swiss horological heritage.
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]
Mobile/WhatsApp: +91- 9841 360 340