A. Schild (AS) Calibre 1983 Watch Spare Parts: Technical Overview and Sourcing Guide

A. Schild (AS) Calibre 1983 is a Swiss automatic movement highly valued for its robust construction, reliable automatic winding, and practical quickset date function. Popular in a variety of mid- to late-20th-century Swiss wristwatches, this movement combines precision engineering with day-to-day practicality, making it a favorite for restoration projects and collector-grade repairs.
Key Technical Highlights

Calibre: AS 1983

Movement Type: Automatic, mechanical

Diameter: 25.60 mm (11.5 lignes)

Height: 4.60 mm

Jewels: 17, 21, or 25 synthetic ruby jewels

Beat Rate: 21,600 vibrations per hour (3 Hz)

Power Reserve: Approx. 46 hours

Functions: Hours, minutes, sweep seconds, date (quickset by repeated crown pushing)

Shock Protection: Typically Incabloc or equivalent

Common Spare Parts and Components

Mainspring and Barrel: Original or new-old-stock (NOS) mainsprings and barrels recommended for stable torque and consistent power delivery.

Balance Wheel and Balance Staff: Precision-critical; authentic or NOS replacements required for accurate timekeeping and shock absorption.

Automatic Rotor and Bearings: Vital for effortless self-winding; these components often wear out and must be replaced with genuine or NOS parts.

Pallet Fork and Escape Wheel: Escapement components prone to wear—replacements should always be genuine or NOS.

Gear Train Wheels: Minute, third, and fourth wheels, sometimes replaced owing to wear and available from donor movements or NOS stocks.

Setting Mechanism (Stem, Crown, Levers, Springs): Correct fit is essential for flawless winding, time setting, and date operation. Stems such as Part No. 401 are generally compatible.

Jewels: Synthetic ruby bearings prevent friction and wear—each bearing must match the original specification.

Hands and Dial Components: Sourcing period-correct parts preserved the watch’s original look and collector value.

Date Mechanism Components: Date disc, jumper, unlocking yoke, and other related gears critical for the quickset feature.

Sourcing and Maintenance Tips

Use only original, NOS, or donor parts specifically designed for AS 1983 movements for integrity and proper fit.

Handle delicate assemblies such as the escapement, balance, and automatic module with utmost care during service.

Apply modern synthetic lubricants minimally and adhere to period-correct service techniques for the best long-term results.

Double-check the calibre number on the main plate before ordering to avoid mismatched parts.

Donor AS 1983 movements are valuable for securing rare or discontinued parts.

Why AS 1983 Spare Parts Matter

Original components secure the movement’s accuracy, reliability, and smooth automatic operation appreciated by collectors and everyday wearers alike.

Restoration with genuine parts upholds the historical and collector value of these classic automatics.

Ready availability of technical documentation and a global watchmaker community ensures confidence in long-term maintenance.

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Stem, Crown, Hands & Spares might be available for this movement.

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