Seiko Quartz Cal. 3421A & 3423A Technical Guide
Technical service manual for Seiko Quartz movements Cal. 3421A and Cal. 3423A. Covers specifications, circuit block structure, disassembly and reassembly procedures for calendar mechanism, circuit block, coil block and gear train. Includes lubrication guidelines, adjustment procedures for output signal, battery voltage and conductivity, coil block resistance, reset and second setting conditions, gear train mechanism, setting and calendar mechanism, accuracy, current consumption, water resistance, and appearance checks.
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Document Details
- Format
- Pages
- 5
- Size
- 209.5 KB
- Category
- Horlogerie