Owner manual / English
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Casio A656 / A657G Manual — Module 160
One owner's manual PDF for the Casio module 160 in English. Casio fitted it in 5 models, including the A656 and A657G — the full list is below. Casio's spec sheet lists one BR2016, with 5 years of battery life and accuracy within ±15 seconds a month; the module first shipped in Apr 1982.
Module specs
Battery: BR2016 (lithium)
Rated battery life: 5 years
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-128
Open Casio battery finderOwner manuals
Watch models using this module
| Model | Released |
|---|---|
| A656- AKA [Lithium] | 1980 |
| A657G | 1980 |
| A659 | 1980 |
| Casio F-85P- AKA [ Megaforce] | 1980 |
| F-85 | 1981 |
| F-85 | 1981 |
| F-85- AKA [MEGAFORCE] | 1982 |
