Seiko Cal. 7L22A Technical Guide
Technical guide for the Seiko caliber 7L22A quartz chronograph movement, designed for technicians performing service, repair, and maintenance work on this specific caliber. Details the internal circuit block structure and provides comprehensive disassembly and reassembly procedures essential for proper servicing. Covers the exclusive movement holder—its setup requirements, correct handling techniques, and step-by-step operational instructions vital for safe movement work. Includes precise procedures for installing both chronograph and hour hands, along with complete lubrication specifications detailing which oils to apply (Moebius A, Moebius F, and SEIKO Watch Oil S-6) and exact quantities for each component. Illustrated throughout with detailed technical drawings and photographs, making each repair procedure clear and straightforward. This workshop manual is indispensable for any watchmaker or technician working with the 7L22A movement.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 13
- Size
- 1.2 MB
- Category
- Watchmaking