Owner manual / English
OLD WATCH SHOP
Casio 15-502 / R-11 Manual — Module 15
One owner's manual PDF for the Casio module 15 in English. Casio fitted it in 5 models, including the 15-502 and R-11 — the full list is below. Casio's spec sheet lists one 393, with 15 months of battery life and accuracy within ±15 seconds a month.
Module specs
Battery: 393 (silver-oxide)
Rated battery life: 15 months
Rated accuracy: ±15 sec/month
Open Casio battery finderOwner manuals
Watch models using this module
| Model | Released |
|---|---|
| 15-502 | 1976 |
| 15-502 | 1976 |
| R-11 | 1976 |
| R-11- AKA [Casiotron] | 1976 |
| R-12 | - |
| R-15 | 1976 |
| R-15 | 1976 |
| R-15- AKA [Casiotron] | 1976 |
| R-19 | 1976 |
| R-19 | 1976 |
| R-15 | 1977 |
