CASIO G-SHOCK GW-7900B-1ER Men’s Solar Radio-Controlled Watch, Black

Shock-resistant structure Tough Solar (solar charging system) Radio wave reception function: Automatic reception (up to 6 times/day) / Manual reception Moon Data Tide Graph Approximately 52.4×50.0×17.7mm Case size: Approx. 52.4 x 50.0 x 17.7 mm Weight: Approx. 71 g Specifications: Shock resistant (Shock Resistant), 20 bar water resistance, Tough Solar (solar charging system), Radio wave reception: Automatic reception (up to 6 times per day) / Manual reception, ＜Japan＞ Received radio wave: JJY, Frequency: 40 kHz / 60 kHz (Fukushima / Kyushu station compatible model), ＜North America＞ Received radio wave: WWVB, Frequency: 60 kHz, ＜Europe＞ Received radio wave: MSF / DCF77, Frequency: 60 kHz / 77.5 kHz, ＜China＞ Received radio wave: BPC, Frequency: 68.5 kHz *When the home time setting is set to a city that can receive radio waves, the watch will receive the station corresponding to that city. The time difference will be set according to the selected city.・World time: Time display for 48 cities (29 time zones) worldwide, with daylight saving time setting function ・Moon data (displays moon age and moon shape) ・Tide graph ・Two stopwatches (1/100 second, 1,000 hour total, with split), only stopwatch 1 has a 5-second countdown auto start function ・Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1-second increments, Auto-repeat, time-up warning) 5 multi-function alarms (1 with snooze alarm) Hourly time signal Full auto-calendar 12/24 hour format switching Low-temperature resistant (-20°C) Operation sound on/off switch EL backlight (auto light, afterglow, selectable afterglow time (3 seconds/5 seconds)) Flash alert (alarm/hourly time signal, timer alert/time-up, stopwatch auto start, alert linked illumination)