ISA Quartz Cal 1198/103 Electronic Movement Datasheet
Technical datasheet for the ISA Quartz caliber 1198/103 electronic movement—a complete reference for watchmakers and technicians servicing quartz watches with this three-hand configuration. Covers the center-seconds hand layout alongside date window functionality, with precise specifications for current draw (2.00 µA), instantaneous rate accuracy, and operating limits across 0–50°C. Resistance to magnetic fields rated at 1500 A/m ensures reliable performance in environments with moderate electromagnetic interference. Details motor working torque requirements and battery performance using SR927SW cells (1.55V, 55 mAh capacity, yielding approximately 38 months of theoretical autonomy). Includes dimensional drawings for the movement cage and mainplate assembly, dial specifications to ensure proper fitting, and comprehensive hand-fitting data covering mass, unbalance characteristics, inertia values, and press-in force tolerances essential for correct hand installation and chronometric stability. Essential reference material for movement service, assembly, and quality control.
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Document Details
- Format
- Pages
- 5
- Size
- 485.2 KB
- Category
- Watchmaking