Citizen Eco Drive Promaster Marine JV3006 50L Chronograph Data WatchCaseColour Yellow it's a standout accessory on it's a standout accessory on any wrist adding practicality to its glamorous appeal 4mm Case Size Stainless Steel Case and Bracelet Accuracy: ±15 seconds per month Sapphire Crystal 200 Meters Wate Resistant Rotating bezel with sailing indicators Luminous hands and markers Alarm functions Moonphase and lunar age display Perpetual calendar (to 31 December 2199) Yacht racing and race timer functions World time (43 cities 29 time zones) Chronograph and countdown timer Tide graph with 203 location settings Sunrise and sunset display Power reserve Powered by Citizen's Eco Drive Calibre U812 movement