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A. Schild (AS) Calibre 1736 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1736 is a vintage Swiss manual-wind mechanical movement valued for its reliable precision, compact dimensions, and traditional watchmaking features. It measures approximately 25.60 mm (11.5 lignes) in diameter, with a slim profile suitable for mid-20th-century wristwatches. The calibre runs at a beat rate of 18,000 vibrations per hour (vph) and typically contains 17 synthetic ruby jewels.
Key Technical Highlights
Calibre: AS 1736
Movement Type: Manual winding, mechanical
Diameter: 25.60 mm (11.5 lignes)
Jewels: 17 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Functions: Hours, minutes, sweep seconds
Shock Protection: Standard vintage anti-shock systems such as Incabloc
Era: Mid-20th century classic Swiss design
Common Spare Parts and Components
Mainspring and Barrel: Crucial for consistent power delivery and torque; replacements must match original specifications to maintain performance.
Balance Wheel and Balance Staff: Precision, shock-resistant parts essential for accurate timekeeping; require careful handling and exact fitting.
Pallet Fork and Escape Wheel: Wear-prone escapement components; availability of original or NOS (new-old-stock) parts ensures smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Commonly replaced due to wear or damage; frequently sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Parts must fit securely to ensure reliable winding and time-setting; winding stems for AS calibres typically listed as Swiss-made originals.
Jewels: Synthetic ruby bearings reduce friction; replacements must match original layout for durability.
Hands and Dial Components: Period-correct parts preserve vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts clearly specified for AS 1736 to maintain movement integrity and compatibility.
Handle fragile components like the balance staff and escapement with care when servicing.
Apply modern synthetic watch oils sparingly, following vintage lubrication guidelines to maximize longevity and reliability.
Verify the calibre number stamped on the main plate before ordering parts to prevent mismatches.
Donor AS 1736 movements can provide hard-to-find or worn components.
Why AS 1736 Spare Parts Matter
Genuine parts preserve the calibre’s accuracy, reliability, and mechanical longevity, essential for fine timekeeping.
Proper servicing with authentic components helps maintain the historical value and collector respect of these classic Swiss manual-wind watches.
The established technical documentation and active watchmaker community facilitate efficient parts sourcing and expert repairs.
Maintaining the A. Schild AS 1736 calibre with high-quality spare parts ensures these refined vintage manual-wind movements continue to perform reliably and uphold their importance in Swiss horology history.