Casio G-Shock men's solar charging black Bluetooth GA-B2100CY-1AER watch. Watch with black resin case with a diameter of 45 mm and a thickness of 11.9 mm. Black resin bezel with matte finish. Black analog and digital dial. Indexes and batons in yellow with Neobrite. Digital time in 12 or 24 hour format. Ability to display up to 29 time zones. LED dial lighting. Stopwatch functions with an accuracy of 1 hundredth of a second up to 24 hours, countdown timer and the ability to set up to 5 daily alarms. Automatic calendar. Water resistance up to 200 meters. Delivered with original box and official guarantee.