ISA Speciality Cal. 9238/1970 Chronograph Watch Technical Documentation
Technical datasheet and assembly documentation for ISA Speciality Cal. 9238/1970 chronograph watch movement. Includes specifications (10 1/2 lignes, 23.30 mm diameter), multi-function characteristics (6 hands, 3 subdials for day/date and dual time zone), frame and case back technical drawings with tolerances, dial specifications and hand-fitting dimensions. Contains hand specifications (N°2, N°3), inertia and press-in force requirements for various hands. Battery specification: SR 920 SW (1.55V, 42 mAh, theoretical autonomy approximately 32 months). Operating temperature range 0°C to +50°C. Current consumption 1.85 µA.
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Document Details
- Format
- Pages
- 6
- Size
- 1.2 MB
- Category
- Horlogerie