casio oceanus Manta titanium solar radio Bluetooth sports watch ocw-S400-3AJF ocw-S400-3A Band: Titanium Muku band Length: 150 - 195 mm / 19.8 mm Case size: 46.5 x 41.3 x 9.2 mm Weight: 79g Tough Solar (solar recharging system) Radio wave reception function: Automatic reception (up to 6 times/day) (up to 5 times/day for Chinese radio waves) / manual reception, radio wave reception: jjy, frequency: 40kHz/60kHz (model compatible with both Fukushima and Kyushu stations) radio wave reception: wwvb, frequency: 60kHz radio wave reception: msf/DCF77, Frequency: 60kHz/77.5kHz Radio reception: bpc, frequency: 68.5kHz *When the home time setting is set to a city where reception is possible, the watch will receive the station corresponding to the city. Mobile link function (functions linked via Bluetooth(r) communication with compatible cell phones) Automatic hand position correction function Power-saving function (stops the hands after a certain period of time in the dark to save power) Date display Fully automatic calendar Drive time without solar power generation from the time of full charge: approx. 5 months in the case of functional use / approx. 19 months in the case of power saving state