7D48 Technical Instruction - Assembly and Lubrication Manual
Comprehensive technical instruction manual for the Seiko 7D48 movement, providing professional-grade guidance on complete assembly procedures. Covers switching unit assembly, wheel train assembly, and circuit assembly with detailed illustrations throughout. Includes precise specifications for all lubrication points, with designated oil formulations (A0-3, A0-3II-1, A0-3II-2, A0-3II-3, A0-2II-1) and step-by-step pivot lubrication instructions to ensure optimal movement performance. Features critical identification notes for distinguishing 7J-series components from 5J2-series alternatives, helping technicians avoid costly mistakes during assembly. Emphasizes proper handling techniques to prevent component deformation during the rebuild process. Essential reference for watchmakers and movement technicians performing overhauls or service work on this quartz movement.
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Document Details
- Format
- Pages
- 12
- Size
- 2.1 MB
- Category
- Watchmaking