Seiko Cal. YT63A Movement - Technical Data
Complete technical data and service specifications for the Seiko Cal. YT63A quartz movement, an automatic generating system in 12" format. This repair and reference manual details the movement's core architecture: 27.0mm diameter, 4.89mm height, with three hands and day/date display. The movement employs a 32.768 Hz tuning fork quartz oscillator regulated by 6 jewels, paired with a titanium-lithium-ion power cell (9.5 × 2.05mm, 4.5mAh at 1.5V) and integral kinetic energy harvesting system. The document provides essential dimensions, time standard performance criteria, functional indicators, power supply characteristics, exploded parts breakdown with individual component codes, and step-by-step accuracy calibration procedures. Invaluable for horologists, technicians, and watchmakers performing maintenance, diagnostics, or module-level repair on YT63A movements.
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Document Details
- Format
- Pages
- 10
- Size
- 204.9 KB
- Category
- Watchmaking