The base model is the original square face DW-5600. It is a model that plays an active part from the mode to the street and the casual fashion scene with the see-through material and the solid design through which the contents can be seen. Shock-resistant structure 20 standard atmosphere waterproof function Stopwatch (1/100 second (00 0000 ~ 59 5999) / 1 second (1: 00 00 ~ 23: 59 59) 24 hour meter with split) Timer (set unit: 1 second maximum set: 24 hours measured in 1-second increments auto repeat) Multi alarm / hourly report Full auto calendar 12/24 hour system display switching EL backlight (with afterglow function) G-SHOCK has built a new concept of toughness on the watch introduction flash function (alarm / time signal / timer linked light emission) brand introduction watch. It all started with a developer's conviction to create a watch that would not break even if dropped and a reckless challenge that overturned common sense at the time. Over 200 prototypes have been repeated and about two years have been spent and the shock-resistant structure has been completed. It is the birth of technology that plays a central role in toughness. Since then G-SHOCK has continued to evolve. Structure material function. In pursuit of further toughness from all sides. Weight: 181 Model Number: DW-5600SB-4JF