Seiko Lassale Quartz Technical Guide - Calibers 7750A, 7751A, 7752A, 7759A
Seiko Lassale quartz technical guide and service manual for four caliber variants—the 7750A and 7759A two-hand movements, plus the three-hand 7751A and 7752A. This workshop reference delivers detailed specifications, circuit block structure diagrams, and systematic disassembly and reassembly procedures with numbered component illustrations. Lubrication specifications cover Moebius A and SEIKO watch oil S-6 applications. The adjustment and checking sections span output signal verification, battery voltage and conductivity testing, circuit block and coil block resistance measurement, gear train inspection, setting and calendar mechanism function, accuracy assessment, current consumption analysis, battery life indicator operation, water resistance verification, and final appearance inspection. Mechanical exploded views and detailed movement component identification support diagnosis and restoration work.
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Document Details
- Format
- Pages
- 6
- Size
- 286.1 KB
- Category
- Watchmaking