Owner manual / German
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One owner's manual PDF for the Casio module 1554 (German only). Casio fitted it in the VDB-200. Casio's spec sheet lists one CR2016, with 24 months of battery life and accuracy within ±15 seconds a month; the module first shipped in May 1996.
Battery: CR2016 (lithium)
Rated battery life: 24 months
Rated accuracy: ±15 sec/month
Casio service manual ref: S/M-528
Open Casio battery finder| Model | Released |
|---|---|
| VDB-200 | 1996 |