ISA 9231/1900 Instruction Manual - Date, Day, Sun and Moon
Instruction manual for the ISA 9231/1900 watch calibre, a complex timepiece featuring date, day, sun and moon complications. This owner's manual provides step-by-step procedures for setting and adjusting all functions—time, date, day of week, and dual sun/moon indicators—all accessed through specific crown positions and push button A operations. Includes battery specification 371-SR920SW and all necessary guidance for daily operation and adjustment.
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
- 1
- Size
- 1.1 MB
- Category
- Watchmaking