Calibre Y551A, Y552A, Y553A Technical Guide - Analogue Quartz
Technical service manual for Seiko Calibre Y551A, Y552A, and Y553A analogue quartz movements. This workshop reference provides complete specifications for all three caliber variants: crystal oscillator frequency of 32.768 kHz, case diameter Ø23.3 mm, movement height 3.3–3.9 mm, and 5 jewels. The guide covers time and calendar setting procedures with precise crown positions required for accurate adjustment. A comprehensive checking and adjustment table helps technicians verify critical parameters. Detailed troubleshooting and testing sections address battery voltage, circuit block conductivity, coil block inspection, output signal verification, second hand setting conditions, accuracy checks, gear train inspection, and current consumption measurement. Technical diagrams and component identification layouts support complete understanding of movement assembly. Essential repair and maintenance reference for watchmakers servicing these popular Seiko quartz movements.
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Document Details
- Format
- Pages
- 15
- Size
- 866.1 KB
- Category
- Watchmaking