ISA Speciality Cal. 9238/1970 Chronograph Technical Data
Technical datasheet for the ISA Speciality Cal. 9238/1970 chronograph movement. This document provides specifications for a 10 1/2 ligne movement with 23.30 mm diameter and 4.13 mm height, featuring six hands with multi-function day, date, dual time zone, and 24-hour subdials. Includes detailed characteristics (6 hands, 3 eyes), operating specifications with current consumption of 1.85 µA, instantaneous rate of ±0.5 to +0.5 s/day, operating temperature range 0°C to +50°C, and resistance to magnetic fields (1500 A/m). Battery specifications detail SR 920 SW cells (1.55V, 42 mAh) with theoretical autonomy of approximately 32 months.
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Document Details
- Format
- Pages
- 6
- Size
- 1.2 MB
- Category
- Watchmaking