18kt rose gold and stainless steel case with a black rubber strap. 18kt rose gold bezel. Black dial with rose gold-tone hands and index hour markers. Tachymeter. Dial Type: Analog. Luminescent hands and markers. Date display between 4 and 5 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hours. Automatic movement. Scratch resistant sapphire crystal. Skeleton transparent exhibition see through case back. Case size: 42 mm. Case thickness: 13 mm. Round case shape. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Hublot Super B Classic Black Dial Men's Chronograph Watch 1921.NL40.7.specs:Case Case Size:42 mmCase Thickness:13 mmCase Material:18kt Rose Gold and Stainless SteelCase Shape:RoundCase Back:Skeleton Transparent Exhibition See ThroughBand Band Material:RubberBand Type:StrapBand Color:BlackDial Dial Color:BlackType:AnalogCrystal:Scratch Resistant SapphireHands:Rose Gold-toneDial Markers:IndexSecond Markers:TachymeterSub Dials:Three - 60 Second, 30 Minute and 12 HourLuminiscence:Hands and MarkersBezel Material:18kt Rose GoldInformation Brand:HublotSeries:Super B ClassicCollection Name:Super B ClassicGender:MensModel:1921.NL40.7Watch Label:Swiss MadeMovement:AutomaticFeatures Water Resistance:100 meters / 330 feetCalendar:Date display between 4 and 5 o'clock positionFunctions:Chronograph, Date, Hour, Minute, SecondWatch Features:Chronograph, Stainless Steel, Rubber, GoldAdditional Info Watch Style:LuxuryWarranty:2 Year Goldia WarrantyGoldia Sku:HB1921NL407Department:WatchesCategory:Watches