Owner manual / Japanese
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One owner's manual PDF for the Casio module 2605 (Japanese only). Casio fitted it in the BGT-2000. 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 Jun 2003.
Battery: CR1616 (lithium)
Rated battery life: 2 years
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-813
Open Casio battery finder| Model | Released |
|---|---|
| BGT-2000 | 2003 |