ISA 8172/220 Electronic Chronograph Movement Specifications
Technical specification document for the ISA 8172/220 quartz chronograph movement, providing essential reference data for watchmakers and technicians servicing this electronic chronograph caliber. Details comprehensive performance characteristics including power consumption, rate accuracy, operating temperature range, and magnetic field resistance. Includes complete battery specification for the SR 927 SW 1.55V cell, dimensional drawings for case integration, dial layout, hand-fitting requirements, and design sample reference. The movement features three independent counters, integrated day-date display, and built-in automatic stop function after 2 hours of continuous timing operation. Cross-referenced documentation for ISA Swiss, ISA France, and ISA Pacific production and service facilities.
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Document Details
- Format
- Pages
- 6
- Size
- 331.2 KB
- Category
- Watchmaking