ISA Slender 257/130 Quartz Watch Movement Technical Specifications
Technical specifications and dimensional drawings for the ISA Slender 257/130 quartz watch movement, a compact 5½-ligne caliber measuring 13.00 × 15.15 mm. This technical manual covers complete movement characteristics including the 2-hand electronic quartz design with 2 jewels and stepping motor architecture. Battery specifications detail the SR 616 SW cell (1.55 V, 15 mAh capacity) and power consumption (0.35 µA). Performance parameters document rate stability of ±0.5 seconds per day across the 50 °C operating range, along with magnetic resistance rating of 1500 A/m. Detailed dimensional drawings provide cage and plate geometry, dial layout, and hand-fitting specifications with assembly tolerances and installation clearances needed for precision watchmaking or service work.
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Document Details
- Format
- Pages
- 5
- Size
- 185.0 KB
- Category
- Watchmaking