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A. Schild (AS) Calibre 1710 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1710 is a vintage Swiss manual-wind mechanical movement featuring a sweep seconds hand. Known for its reliability and classic design, this calibre measures approximately 25.60 mm (11.5 lignes) in diameter with a height of about 4.00 mm. It typically contains 17 synthetic ruby jewels and operates at a beat rate of 18,000 vibrations per hour (vph), making it a popular choice for vintage watch collectors and restorers.
Key Technical Highlights
Calibre: AS 1710
Movement Type: Manual winding, mechanical
Diameter: 25.60 mm (11.5 lignes)
Height: 4.00 mm
Jewels: 17 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Functions: Hours, minutes, sweep seconds
Shock Protection: Standard vintage anti-shock system (typically Incabloc)
Common Spare Parts and Components
Mainspring and Barrel: Vital for energy storage and stable torque; replacements must match original dimensions and strength for consistent power delivery.
Balance Wheel and Balance Staff: Delicate and precision components essential for timing accuracy and shock absorption; require exact fitting and quality replacements.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; sourcing original or high-quality new-old-stock (NOS) ensures smooth functioning.
Gear Train Wheels (Minute, Third, Fourth): Subject to wear and damage; usually sourced from donor movements or NOS stock.
Setting Mechanism (Stem, Crown, Levers, Springs): Must fit precisely for reliable winding and time-setting functionality.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacement jewels must correspond to the original layout and number.
Hands and Dial Components: Period-appropriate parts help maintain vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Always use original, NOS, or donor parts clearly marked for AS 1710 to guarantee compatibility and preserve movement integrity.
Handle delicate parts such as the balance and escapement assemblies with care during servicing to avoid damage.
Apply modern synthetic watch oils sparingly, following vintage lubrication guidelines to maximize movement longevity and performance.
Verify the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Donor movements can be valuable sources for hard-to-find or worn components.
Why AS 1710 Spare Parts Matter
Authentic parts preserve the calibre’s accuracy, mechanical reliability, and vintage character essential for proper function.
Proper servicing with genuine components extends the movement’s longevity and maintains collector value.
The well-documented technical details and active vintage watchmaker community facilitate accurate parts sourcing and expert servicing.
Maintaining the A. Schild AS 1710 calibre with quality spare parts is essential to keep these classic manual-wind watches running reliably and preserving their historic Swiss heritage.