CASIO G-SHOCK GW-7900B-1ER Purchased online for around 18,000 yen. Unopened and unused because I received a smartwatch as a gift shortly after. However, the box was not included originally. No claims and no returns accepted. 【Specifications】 Size: Case: Approximately 52.4 x 50.0 x 17.7mm Weight: Approximately 71g ・Shock-resistant structure (Shock Resist) ・20-bar water resistance ・Tough Solar (solar charging system) ・Radio wave reception function: Automatic reception (up to 6 times/day) / Manual reception ・World time: Displays the time of 48 cities (29 time zones), with summer time setting function ・Moon data (lunar phase and moon shape display) ・Tide graph ・2 stopwatches (1/100 second, 1,000-hour counter, 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 notification) ・5 multi-alarms (1 with snooze function) ・Hourly time signal ・Full auto-calendar ・12/24 hour display switching ・Low-temperature resistance (-20℃) ・Operation sound ON/OFF switching function ・EL backlight (auto light, afterglow function, afterglow time switching (3 seconds / 5 seconds) included) ・Sound flash function (alarm / hourly time signal, timer notification / time up, stopwatch auto-start, sound-linked light emission)