Casio · Watches

Casio LA670WA-1 battery

1 × 3V lithium coin cell

Casio lists approx. battery life of 2 years on CR1216 for LA670WA-1. Same LA670 family cell as LA670WGA-1. Case-back service typically required.

How to replace it

Notes	Case-back service typically required; water resistance should be retested after opening.

Last checked 9 October 2026

Casio LA670WA-1 uses 1 × CR1216.

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Optional tools for opening, testing or charging — separate from the battery answer.

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Fluke 101 Digital Multimeter
Accurate open-circuit voltage and basic electrical checks
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Klein Tools MM400 Multimeter
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Digital multimeter
Measure open-circuit voltage and general electronics checks
Voltage alone does not establish usable capacity, especially for rechargeables.
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Buy links are optional and separate from the battery answer.

Casio LA670WA-1 is still sold new. Only buy another if a fresh battery and the checks above did not help.

Buy links go to Amazon (Associates where tagged) or other affiliate programmes when available. They never change the battery answer.