Japanese Quartz Movement. World Time, Stopwatch, Timer, Alarm, Flash Alert and Automatic Calendar Functions.51.4mm x 46.8mm x 15.5mm Black Resin and Stainless Steel Case. Characteristic Shock-Proof Case with Easy to Press Button ArrangementGreen Digital Dial with Three "Eyes" Digital Graphics, Green and Grey Accents, and Scratch Resistant Mineral Crystal.24mm Black Resin Strap with Stainless Steel Pin BuckleWater Resistant to 200 Metres 20ATM