Stainless steel case with a white (alligator) leather strap. Fixed stainless steel bezel. White dial with luminous black hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Omega calibre 8500 automatic movement with a 60-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape. Case size: 39 mm. Deployment clasp with a push button release. Water resistant at 150 meters / 500 feet. Functions: date, hour, minute, second, co-axial escapement, chronometer. Luxury watch style. Watch label: Swiss Made. Item Variations: 231 13 39 21 54 001, 231-13-39-21-54-001, 231/13/39/21/54/001, 23113392154001. Omega Seamaster Aqua Terra Automatic Men's Watch 231.13.39.21.54.001.specs:Case Case Size:39 mmCase Material:Stainless SteelCase Shape:RoundCase Back:SolidBand Band Material:Alligator LeatherBand Type:StrapBand Color:WhiteClasp:Deployment with Push Button ReleaseDial Dial Color:WhiteType:AnalogCrystal:Scratch Resistant SapphireHands:Luminous BlackDial Markers:IndexSecond Markers:Minute Markers around the outer rimLuminiscence:Hands and MarkersBezel:FixedBezel Color:Silver-toneBezel Material:Stainless SteelCrown:Pull / PushInformation Brand:OmegaSeries:Aqua TerraCollection Name:Seamaster Aqua TerraGender:MensModel:231.13.39.21.54.001Watch Label:Swiss MadeMovement:AutomaticEngine:Omega Calibre 8500Power Reserve:60 hoursFeatures Water Resistance:150 meters / 500 feetCalendar:Date display at the 3 o'clock positionFunctions:Date, Hour, Minute, Second, Co-Axial Escapement, ChronometerWatch Features:Stainless Steel, Leather, Chronometer, Analog, Alligator LeatherAdditional Info Watch Style:LuxuryWarranty:4 Year Goldia WarrantyUPC Code:683498473350Goldia Sku:OM23113392154001Item Variation:231 13 39 21 54 001, 231-13-39-21-54-001, 231/13/39/21/54/001, 23113392154001Department:WatchesCategory:Watches