A Schild – AS Calibre 1726 Watch spare parts
| A Schild – AS Calibre 1726 – Part No. 100 plate |
| A Schild – AS Calibre 1726 – Part No. 105 Barrel bridge |
| A Schild – AS Calibre 1726 – Part No.110 Train-wheel bridge |
| A Schild – AS Calibre 1726 – Part No. 121 Balance cock |
| A Schild – AS Calibre 1726 – Part No. 125 Pallet cock |
| A Schild – AS Calibre 1726 – Part No. 182 Barrel and cover |
| A Schild – AS Calibre 1726 – Part No. 195 Barrel arbor |
| A Schild – AS Calibre 1726 – Part No. 201 Center wheel |
| A Schild – AS Calibre 1726 – Part No. 210 Third wheel |
| A Schild – AS Calibre 1726 – Part No. 224 Fourth wheel |
| A Schild – AS Calibre 1726 – Part No. 240 Cannon pinion |
| A Schild – AS Calibre 1726 – Part No. 250 Hour wheel |
| A Schild – AS Calibre 1726 – Part No. 260 Minute wheel |
| A Schild – AS Calibre 1726 – Part No. 301 Regulator for flat hairspring |
| A Schild – AS Calibre 1726 – Part No. 311 Upper cap jewel with end-piece, for balance |
| A Schild – AS Calibre 1726 – Part No. 330 Lower cap jewel with end-piece,for balance |
| A Schild – AS Calibre 1726 – Part No. 401 Winding stem |
| A Schild – AS Calibre 1726 – Part No. 407 Clutch wheel |
| A Schild – AS Calibre 1726 – Part No. 410 Winding pinion |
| A Schild – AS Calibre 1726 – Part No. 415 Ratchet wheel |
| A Schild – AS Calibre 1726 – Part No. 420 Crown wheel |
| A Schild – AS Calibre 1726 – Part No. 422 Crown wheel ring |
| A Schild – AS Calibre 1726 – Part No. 425 Click |
| A Schild – AS Calibre 1726 – Part No. 430 Click spring |
| A Schild – AS Calibre 1726 – Part No. 435 Yoke |
| A Schild – AS Calibre 1726 – Part No. 440 Yoke spring |
| A Schild – AS Calibre 1726 – Part No. 443 Setting lever |
| A Schild – AS Calibre 1726 – Part No. 445 Setting Iever spring |
| A Schild – AS Calibre 1726 – Part No. 450 Setting wheel |
| A Schild – AS Calibre 1726 – Part No. 705 Escape wheel and pinion |
| A Schild – AS Calibre 1726 – Part No. 710 Jewelled pallet fork |
| A Schild – AS Calibre 1726 – Part No. 721 Complete Balance |
| A Schild – AS Calibre 1726 – Part No. 770 Mainspring |
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A. Schild (AS) Calibre 1726 Watch Spare Parts: Technical Overview and Sourcing Guide
A. Schild (AS) Calibre 1726 is a vintage Swiss manual-wind mechanical movement cherished for its compact form, high-beat accuracy, and robust reliability. Measuring around 8.75 lignes (19.4mm) in diameter and 3.45–3.55mm in height, this calibre typically features 17 synthetic ruby jewels and operates at a fast 21,600 vibrations per hour (vph), making it a preferred choice for fine small wristwatches and restoration projects.
Key Technical Highlights
Calibre: AS 1726
Movement Type: Mechanical, manual winding
Diameter: 8.75 lignes (approx. 19.4mm)
Height: 3.45–3.55mm
Jewels: 17 synthetic ruby
Beat Rate: 21,600 vph
Power Reserve: 38 to 45 hours
Functions: Hours, minutes, small seconds (sub-dial)
Shock Protection: Incabloc system
Notable Features: Screw balance, hacking seconds, Swiss-made
Common Spare Parts and Components
Mainspring and Barrel: Ensures stable power delivery; must match original specs for torque and power reserve.
Balance Wheel and Balance Staff: Essential for precise timekeeping and shock resistance; require perfect fitment.
Pallet Fork and Escape Wheel: Wear-prone escapement parts; replacements should be original or NOS for smooth function.
Gear Train Wheels (Minute, Third, Fourth): Often replaced due to wear; typically sourced as NOS or from donor movements.
Click and Ratchet Wheel: Key for winding; available as original Swiss parts.
Setting Mechanism (Stem, Crown, Levers, Springs): Accurate fit is vital for smooth winding and time-setting.
Jewels: Synthetic ruby bearings; replacements should follow the original configuration.
Hands and Dial: Period-correct parts uphold authenticity and collector value.
Sourcing and Maintenance Tips
Source original, NOS, or donor parts marked for AS 1726 to ensure perfect fit and preserve movement quality.
Handle delicate parts (balance, escapement) with special care when servicing.
Apply modern synthetic watch oils sparingly and follow vintage lubrication standards for longevity.
Always confirm the calibre number on the main plate before ordering spare parts to avoid mismatches.
Donor AS 1726 movements are invaluable resources for rare or worn spare components.
Why AS 1726 Spare Parts Matter
Genuine parts ensure the calibre’s accuracy, reliability, and longevity, key for quality timekeeping.
Authentic restoration preserves the historical and collectible value of classic Swiss manual-wind watches.
Active technical documentation and vibrant watchmaker communities help facilitate correct sourcing and expert repair.
This approach keeps the A. Schild AS 1726 calibre running smoothly and honors its important heritage in Swiss horology.