A Schild – AS Calibre 1690 Watch spare parts
| A Schild – AS Calibre 1690 – Part No. 100 plate |
| A Schild – AS Calibre 1690 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1690 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1690 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1690 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1690 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1690 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1690 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1690 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1690 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1690 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1690 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1690 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1690 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1690 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1690 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1690 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1690 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1690 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1690 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1690 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1690 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1690 – Part No. 425 Click |
| A Schild – AS Calibre 1690 – Part No. 430 Click spring |
| A Schild – AS Calibre 1690 – Part No. 435 Yoke |
| A Schild – AS Calibre 1690 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1690 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1690 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1690 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1690 – Part No. 704 Escape wheel and pinion |
| A Schild – AS Calibre 1690 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1690 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1690 – Part No. 770 Mainspring |
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A. Schild (AS) Calibre 1690 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1690 is a vintage Swiss manual-wind mechanical movement well-regarded for its reliability and classic design. Produced around the 1960s, this calibre features a diameter of approximately 23.7 mm (10.5 lignes) and operates at a beat rate of 18,000 vibrations per hour (vph). It typically comes with 15, 17, or 21 synthetic ruby jewels and offers a power reserve of about 50 hours. The movement is valued by collectors and watchmakers restoring vintage timepieces.
Key Technical Highlights
Calibre: AS 1690
Movement Type: Manual winding, mechanical
Diameter: Approximately 23.7 mm (10.5 lignes)
Jewels: 15, 17, or 21 synthetic ruby jewels
Beat Rate: 18,000 vibrations per hour (vph)
Power Reserve: About 50 hours
Lift Angle: 52 degrees
Function: Hours, minutes, sub-seconds
Height: Approximately 4.0 mm
Common Spare Parts and Components
Mainspring and Barrel: Key for stable power storage and energy release; replacements must fit original dimensions to maintain torque and consistency.
Balance Wheel and Balance Staff: Delicate parts vital for precise timekeeping and shock resistance; sourcing original or quality new-old-stock (NOS) is recommended.
Pallet Fork and Escape Wheel: Wear-prone escapement parts requiring authentic or NOS replacements for smooth function.
Gear Train Wheels (Minute, Third, Fourth): Often replaced due to wear or pivot issues; donor movements and NOS stock are common sources.
Setting Mechanism (Stem, Crown, Levers, Springs): Precise fit parts essential for proper winding and time setting.
Jewels: Synthetic ruby bearings arranged to minimize friction; replacements must match original count and layout.
Hands and Dial Components: Period-correct parts maintain vintage authenticity and collector appeal.
Sourcing and Maintenance Tips
Use original or NOS parts specifically designated for AS 1690 to ensure compatibility and maintain movement integrity.
Donor AS 1690 movements are valuable for harvesting rare or worn components.
Handle fragile parts like the balance wheel and escapement carefully during servicing.
Apply modern synthetic lubricants sparingly, following vintage standards to prolong the movement’s life.
Confirm the calibre number stamped on the main plate before ordering parts to avoid mismatches.
Why AS 1690 Spare Parts Matter
Authentic parts ensure the movement’s accuracy, reliability, and longevity.
Proper restoration with genuine components upholds the collector value and mechanical heritage of vintage Swiss watches.
The documented technical profile of AS 1690 enables informed repairs and parts sourcing among watchmakers.
Maintaining the A. Schild AS 1690 with quality spare parts is crucial for preserving these classic manual-wind mechanical watches, ensuring they continue to function with precision and historical authenticity.