Details Caliber No. U680 Movement Eco-Drive Signal Reception Without Radio Reception Function Water Resistant Water Resistant to 200m Thickness 14.3mm Case Size 45.5mm Case Super Titanium Glass Sapphire Glass Warranty 3 years Specification 24hrs, Date and Day Display 43 World Cities Time Chronograph 1/1000s Digital Backlight Display Dual Alarms Dual Time Perpetual Calendar Power Reserve Indicator Radio-Controlled