Owner manual / English
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Casio AE-21W Manual — Module 809
Two owner's manual PDFs for the Casio module 809, each a different scan (English included). Casio fitted it in the AE-21W. Casio's spec sheet lists one CR1616, with 2 years of battery life and accuracy within ±15 seconds a month; the module first shipped in May 1988.
Module specs
Battery: CR1616 (lithium)
Rated battery life: 2 years
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-283
Open Casio battery finderWatch models using this module
| Model | Released |
|---|---|
| AE-21W- AKA [Twin Graph II] | 1988 |
