Hattori Seiko V899A Parts Catalogue and Technical Guide
Comprehensive parts catalogue and technical service guide for the Seiko V899A quartz watch movement. This workshop manual provides everything needed for professional repair and maintenance of this 17.6mm diameter, 2.6mm height movement. Detailed specifications cover the 2-hand time display with integrated date calendar function. The guide includes a fully annotated parts diagram with individually numbered components, making identification straightforward during disassembly and reassembly work. Step-by-step procedures walk through both taking apart and rebuilding the movement safely. Battery replacement guidance covers all compatible cells: SEIKO SR621SW, Maxell SR621SW, SONY SR621SW, and Eveready 364. Lubrication specifications clearly identify the correct oils for different bearing surfaces—Moebius A and SEIKO Watch Oil S-6—essential for reliable timekeeping after service. The circuit block structure section explains the electronic architecture, while value checking procedures establish proper testing parameters including coil block resistance limits (2.7kΩ–4.1kΩ range) and current consumption specifications for troubleshooting and verification. Indispensable reference for watch technicians servicing this movement.
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Document Details
- Format
- Pages
- 3
- Size
- 150.8 KB
- Category
- Watchmaking