Silver-tone stainless steel case with a silver-tone stainless steel and 18kt rose gold center links bracelet. Fixed 18kt rose gold showing tachymeter markings bezel. Black dial with luminous rose gold alpha-style hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 6 o'clock position. Chronograph - two sub-dials displaying: 60 second and 12 hour. Omega Calibre 9300 Automatic movement, containing 54 Jewels, composed of 337 parts, bitting at 28800 vph, and has a power reserve of approximately 60 hours. Scratch resistant sapphire crystal. Pull / push crown. Transparent case back. Round case shape, case size: 41.5 mm, case thickness: 15.5 mm. Band width: 19 mm. Fold over clasp with a push button release. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second, chronometer, tachymeter. Speedmaster Series. Luxury watch style. Watch label: Swiss Made. Item Variations: 331 20 42 51 01 002, 331-20-42-51-01-002, 331/20/42/51/01/002, 33120425101002. Omega Speedmaster Chronograph Automatic Chronometer Black Dial Men's Watch 331.20.42.51.01.002.specs:Case Case Size:415Case Thickness:15.5 mmCase Material:Stainless SteelCase Shape:RoundCase Back:TransparentBand Band Material:Stainless Steel and 18kt Rose Gold Center LinksBand Type:BraceletBand Color:Silver-toneBand Width:19 mmClasp:Fold Over with Push Button ReleaseDial Dial Color:BlackType:AnalogCrystal:Scratch Resistant SapphireHands:Luminous Rose Gold Alpha-styleDial Markers:IndexSecond Markers:Minute Markers around the outer rimSub Dials:Two - 60 Second and 12 HourLuminiscence:Hands and MarkersBezel:FixedBezel Material:18kt Rose Gold showing Tachymeter MarkingsCrown:Pull / PushInformation Brand:OmegaSeries:SpeedmasterCollection Name:SpeedmasterGender:MensModel:331.20.42.51.01.002Watch Label:Swiss MadeMovement:AutomaticEngine:Omega Calibre 9300Power Reserve:60 hoursFeatures Water Resistance:100 meters / 330 feetCalendar:Date display at the 6 o'clock positionFunctions:Chronograph, Date, Hour, Minute, Second, Chronometer, TachymeterWatch Features:Chronograph, Stainless Steel, Gold, Chronometer, AnalogAdditional Info Watch Style:LuxuryWarranty:4 Year Goldia WarrantyUPC Code:7612586244858Goldia Sku:OM33120425101002Item Variation:331 20 42 51 01 002, 331-20-42-51-01-002, 331/20/42/51/01/002, 33120425101002Department:WatchesCategory:Watches