G-Shock watch Casio GST-B500D-1AER gray steel G-Steel collection. Watch with steel case with a diameter of 46 mm and a thickness of 14 mm. Gray analogue and digital dial, steel bracelet with push-button closure. Model with Shockproof, Super lighting, 5 daily alarms, Automatic calendar, 12/24 hour format, Solar function, Bluetooth® Smart, Smartphone time, Snooze function, Telephone search, Hand movement function, World time function, Stopwatch - 1/ 1000 sec - 24 hours, Mineral glass, Timer - 1/1 sec. - 24 hours. Waterproof classification (20 bar), delivered with original box and official guarantee.