Owner manual / English
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Casio CFX-20 / CFX-200 Manual — Module 197
One owner's manual PDF for the Casio module 197 in English. Casio fitted it in the CFX-20 and CFX-200. Casio's spec sheet lists one BR2020, with 15 months of battery life and accuracy within ±15 seconds a month; the module first shipped in Dec 1982.
Module specs
Battery: BR2020 (lithium)
Rated battery life: 15 months
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-137
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Watch models using this module
| Model | Released |
|---|---|
| CFX-20- AKA [Scientific] | 1983 |
| CFX-200- AKA [Scientific] | 1985 |
