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
A. Schild (AS) Calibre 1704 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1704 is a vintage Swiss manual-wind mechanical movement, highly regarded for its reliability, compact flat profile, and sweep seconds feature. Produced around the 1960s, this calibre measures approximately 25.60 mm (11.5 lignes) in diameter with a height of about 3.60 mm. It features 17 synthetic ruby jewels and runs at a frequency of 18,000 vibrations per hour (vph), offering a power reserve of around 42 hours.
Key Technical Highlights
Calibre: AS 1704
Movement Type: Manual winding, mechanical
Diameter: 25.60 mm (11.5 lignes)
Height: 3.60 mm
Jewels: 17 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: Approximately 42 hours
Functions: Hours, minutes, sweep seconds
Shock Protection: Standard vintage anti-shock system like Incabloc
Lift Angle: 52 degrees
Common Spare Parts and Components
Mainspring and Barrel: Must match original specification for steady torque and power delivery.
Balance Wheel and Balance Staff: Delicate components essential for timekeeping accuracy and shock resistance; require precise fitting.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; originals or high-quality new-old-stock (NOS) replacements recommended.
Gear Train Wheels (Center, Third, Fourth, Sweep Second): Commonly replaced due to wear or damage; often sourced from NOS stock or donor movements.
Setting Mechanism (Stem, Crown, Levers, Springs): Must fit perfectly for smooth winding and time setting.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacement jewels must match the original layout.
Hands and Dial Components: Period-correct parts help maintain vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original, NOS, or donor parts specifically marked for AS 1704 to maintain compatibility and movement integrity.
Handle fragile components such as the balance wheel and escapement with care during servicing.
Apply modern synthetic watch oils sparingly, following vintage lubrication standards to maximize longevity.
Verify the calibre number stamped on the main plate before ordering parts to prevent mismatches.
Why AS 1704 Spare Parts Matter
Authentic parts preserve the calibre’s accuracy, reliability, and classic vintage character, ensuring proper mechanical function.
Proper servicing and restoration with genuine components extend the movement’s longevity and maintain collector value.
The well-documented technical details and active watchmaker community facilitate accurate parts sourcing and expert servicing.
Maintaining the A. Schild AS 1704 calibre with quality spare parts is essential to keep these refined vintage manual-wind watches running reliably and preserving their horological heritage.