Seiko Quartz 4004 Cal.0903A Technical Guide
Complete technical guide for the Seiko Quartz 4004 movement (Cal.0903A). Covers specifications, characteristics, functioning of electronic circuit block with crystal oscillator at 32,768 Hz, step motor system, gear train mechanism, setting mechanism with second setting device, calendar mechanism with day and date changes, case construction details. Includes operational sequences, troubleshooting checks for output signal, battery voltage, circuit block conductivity, coil block, second setting lever, gear train condition, accuracy adjustments, disassembling and reassembling procedures with tools required, lubrication and cleaning instructions.
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Document Details
- Format
- Pages
- 22
- Size
- 1.3 MB
- Category
- Horlogerie