This includes the references GWF-D1000-1 and GWF-D1000B-1 (blue color accents). Besides the usual features such as "Tough Solar" sunlight-powered movement and atomic clock radio signal accuracy control system, the watch has three sensors, namely, temperature, depth gauge, and compass. The watch will log the user's dive time, track the depth, record the water temperature, and log the data for up to 20 dives.