At the same time, it's still a traditional watch, so the battery still needs to be replaced. That's why Casio used a unique glass adhesive method to create a water-resistant seal that still makes ...

For its sauna watch, the Sadokei, Casio has employed a few unique innovations and features. The watch features a new heat-resistant battery suitable for use in the high temperatures of a sauna.

Powered by a small battery, this innovative timekeeper ... $128 USD), the CRW-001-1JR Ring Watch will be available via Casio from in December.

Well, as we mentioned before, Casio’s new Android Wear watch packs GPS. It’s a special low-power GPS which saves battery life, but uses Glonass and Michibiki satellites for improved accuracy.