Seiko Quartz Cal. 5C20A, 5C23A Parts Catalogue
Parts catalogue and technical guide for Seiko Quartz movements Cal. 5C20A and Cal. 5C23A. Includes exploded view diagrams with numbered components, specifications (32,768 Hz oscillator frequency, step motor drive, rotary step switch regulation), characteristics comparison table, hand installation procedures, disassembly and reassembly instructions for setting mechanism, gear train, and coil block. Covers checking and adjustment procedures including accuracy verification, battery voltage testing, current consumption measurement, and alarm system verification. Lists battery specifications (SEIKO TR721W, Maxell SR721W, 1.55V). Indexed parts list with part numbers.
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
- 10
- Size
- 420.9 KB
- Category
- Horlogerie