OMEGA Seamaster Aqua Terra 150M Co Axial Master Chronometer 41mm Watch GradForHim FeaturesMovement: U680†Eco DriveCase Size: 46mmWater Resistance: delivering a remarkable 72 FeaturesMovement: U680†Eco DriveCase Size: 46mmWater Resistance: 20†bar (200†metres)Dial Colour: BlueSynchronized to Atomic Clock for Superior AccuracyAtomic Timekeeping Technology with Synchronized Time Adjustment Available in 43 World Cities1 100 Second Chronograph Measures up to 24 HoursPerpetual Calendar†Dual Time (Second Time Zone)2 Alarms99 Minute Countdown TimerDigital Backlight DisplayCoordinated Universal Time (UTC) Display Power Reserve Indicator Retro design inspired by the 1970's certified at the industry’s highest standard by the Swiss Federal Institute of Metrology (METAS) Blue is used for the central seconds hand and the four quarter numbers on the minute track