Stainless steel case with a stainless steel bracelet. Fixed stainless steel bezel showing tachymeter markings. Black dial with luminous silver-tone 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 - three sub-dials displaying: 12 hours, 30 minutes and 60 seconds. Omega calibre 3313 automatic movement with a 52-hour power reserve. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Round case shape. Case size: 42 mm. Case thickness: 14.5 mm. Band width: 20 mm. Fold over clasp with a push button release. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second, chronometer, tachymeter. Sport watch style. Watch label: Swiss Made. Item Variations: 321 10 42 50 01 001, 321-10-42-50-01-001, 321/10/42/50/01/001, 32110425001001. Omega Speedmaster Broad Arrow Black Dial Men's Watch 321.10.42.50.01.001.specs:General Color:Black / SkeletonCase Case Size:42 mmCase Thickness:14.5 mmCase Material:Stainless SteelCase Shape:RoundCase Back:SkeletonBand Band Material:Stainless SteelBand Type:BraceletBand Color:Silver-toneBand Width:20 mmClasp:Fold Over with Push Button ReleaseDial Dial Color:BlackType:AnalogCrystal:Scratch Resistant SapphireHands:Luminous Silver-toneDial Markers:IndexSecond Markers:Minute Markers around the outer rimSub Dials:Three - 12 Hour, 30 Minute, 60 SecondLuminiscence:Hands and MarkersBezel:FixedBezel Color:Silver-toneBezel Material:Stainless Steel showing Tachymeter MarkingsCrown:Pull / PushInformation Brand:OmegaSeries:SpeedmasterCollection Name:Speedmaster Broad ArrowGender:MensModel:321.10.42.50.01.001Watch Label:Swiss MadeMovement:AutomaticEngine:Omega Calibre 3313Power Reserve:52 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, Chronometer, AnalogAdditional Info Watch Style:SportWarranty:4 Year Goldia WarrantyUPC Code:7612586175534Goldia Sku:OM32110425001001Item Variation:321 10 42 50 01 001, 321-10-42-50-01-001, 321/10/42/50/01/001, 32110425001001Department:WatchesCategory:Watches