Casio卡西欧Protrek系列光动能电波表PRW-3000-2CR，搭载最新款的光动能石英机芯，第三代高度温度气压感应器，体积比前代缩减95%，耗电减少90%，并提高了测量精度。太阳能，六局电波，48个世界时间显示，日出日落、闹铃、秒表、倒计时、全盘LED背光、100米防水、耐-10度低温。橡胶材质和表带，佩带舒适。

Amazon今日特价至$200，近期低价。

Tough solar power; multi-band 6 atomic timekeeping; low temperature resistant (-10c/14f).Altimeter; barometer; thermometer; sunrise and sunset data.World time (48 cities/UTC);full auto el backlight with afterglow; 4 daily alarms and 1 snooze.1/10 sec stopwatch (1000hr); countdown timer (24hr); 12/24 hr. Formats; power saving function.Water-resistant to 100 M (330 feet).