A Schild – AS Calibre 1727 Watch spare parts
| A Schild – AS Calibre 1727 – Part No. 100 plate |
| A Schild – AS Calibre 1727 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1727 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1727 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1727 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1727 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1727 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1727 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1727 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1727 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1727 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1727 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1727 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1727 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1727 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1727 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1727 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1727 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1727 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1727 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1727 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1727 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1727 – Part No. 425 Click |
| A Schild – AS Calibre 1727 – Part No. 430 Click spring |
| A Schild – AS Calibre 1727 – Part No. 435 Yoke |
| A Schild – AS Calibre 1727 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1727 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1727 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1727 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1727 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1727 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1727 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1727 – Part No. 770 Mainspring |
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A. Schild (AS) Calibre 1727 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1727 is a vintage Swiss manual-wind mechanical movement admired for its compact design, high-beat precision, and reliability in small wristwatches. It was produced in the mid-1960s and closely relates to the AS 1726, with a beveled edge for a more refined look.
Key Technical Highlights
Calibre: AS 1727
Movement Type: Manual winding, mechanical
Diameter: 8.75 lignes (approx. 19.4mm)
Height: 3.45–3.55mm
Jewels: 17 synthetic ruby jewels
Beat Rate: 21,600 vibrations per hour (vph)
Power Reserve: 38–45 hours
Lift Angle: 52°
Functions: Hours, minutes, small seconds (sub-dial)
Shock Protection: Incabloc anti-shock system
Notable Features: Screw balance, hacking seconds, Swiss-made mid-1960s design
Common Spare Parts and Components
Mainspring and Barrel: Key to power delivery; must match original specifications. Quality replacements (NOS and aftermarket) are available for AS 1727.
Balance Wheel and Balance Staff: Delicate precision parts, crucial for timekeeping and shock absorption; demand an exact fit for reliable performance.
Pallet Fork and Escape Wheel: Wear-prone escapement components; optimal to use original or new-old-stock (NOS) replacements for smooth operation.
Gear Train Wheels (Minute, Third, Fourth): Frequently replaced due to wear; typically sourced from donor movements or NOS stock.
Click, Ratchet Wheel: Essential for winding and power retention; available as original Swiss spare parts.
Setting Mechanism (Stem, Crown, Levers, Springs): Precise fitment required for smooth winding and hands setting. Winding stems are specifically available for AS 1727.
Jewels: Synthetic ruby bearings; replacements should match original placement and number.
Hands and Dial: Period-appropriate parts preserve authenticity and value.
Sourcing and Maintenance Tips
Always use original, NOS, or donor parts labeled for AS 1727 to ensure compatibility and maintain movement integrity.
Handle delicate components such as balance and escapement with special care during servicing.
Apply modern synthetic watch lubricants sparingly in line with vintage servicing standards.
Always check the calibre number stamped on the main plate before ordering spares to avoid mismatches.
Donor AS 1727 movements are valuable for sourcing rare or worn spare parts.
Why AS 1727 Spare Parts Matter
Correct and authentic parts sustain the calibre’s accuracy, durability, and collectible value.
Specialist restoration with genuine components preserves the historical significance of these classic Swiss watches.
The design is well-documented among watchmaker communities, supporting efficient parts sourcing and expert repairs.
Maintaining the A. Schild AS 1727 with the right spare parts is essential for keeping these high-precision vintage watches operating at their best, protecting both their function and their place in Swiss horological history.