GSO ISO 3764:2026

ISO 3764:2016
Gulf Standard   Current Edition · Approved on 17 September 2026

Timekeeping instruments — Movements — Types, dimensions and nomenclature

GSO ISO 3764:2026 Files

English 8 Pages
Current Edition Reference Language
OMR 31.15

GSO ISO 3764:2026 Scope

ISO 3764:2016 specifies the types and fitting dimensions of mechanical and electromechanical watch-movements.

This International Standard is applicable to the five following types of movements:

- Type 1: round;

- Type 2: shaped round;

- Type 3: round with double cutting;

- Type 4: 5 ½′′′;

- Type 5: 6 × 8′′′.

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