ISA Caliber 228/130 Technical File - Watch Movement
Technical documentation for ISA Caliber 228/130 quartz watch movement. Includes specifications, performance criteria (current consumption 0.40 µA, accuracy 0-+0.4 s/day), operating temperature range 0-50°C, magnetic field resistance 1500 A/m. Features 2-hand electronic movement with 6 jewels, rotary stepping motor (12 steps per minute), stop device and current breaker, 2-position stem. SR 716 SW battery 1.55V with 72-month autonomy. Contains detailed dimensional drawings for case, dial, and hand assembly with tolerances.
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Document Details
- Format
- Pages
- 5
- Size
- 468.6 KB
- Category
- Horlogerie