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Casio QGS-16 / QS-16 Manual — Module 54
One owner's manual PDF for the Casio module 54 in English. Casio fitted it in the QGS-16 and QS-16. Casio's spec sheet lists one 392, with 15 months of battery life and accuracy within ±15 seconds a month; the module first shipped in Aug 1978.
Module specs
Battery: 392 (silver-oxide)
Rated battery life: 15 months
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-109
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Watch models using this module
| Model | Released |
|---|---|
| QGS-16 | 1978 |
| QS-16 | 1978 |