18kt rose gold case with a dark brown (alligator) leather strap. Fixed 18kt rose gold bezel. Silver dial with rose gold hands and index hour markers. Roman numerals mark the 6 and 12 o'clock positions. Minute markers around the outer rim. Dial Type: Analog. Day of the week and date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. IWC calibre 79320 automatic movement, based upon ETA 7750, containing 31 Jewels, bitting at 28800 vph, and has a power reserve of approximately 44 hours. Scratch resistant sapphire crystal. Pull / push crown. Solid case back. Round case shape. Case size: 42 mm. Case thickness: 13.5 mm. Band width: 20 mm. Tang clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, day, date, hour, minute, second. Portofino Series. Luxury watch style. Watch label: Swiss Made. IWC Portofino Chronograph Silver Dial Brown Alligator Leather Men's Watch IW391020.specs:Case Case Size:42 mmCase Thickness:13.5 mmCase Material:18kt Rose GoldCase Shape:RoundCase Back:SolidBand Band Material:(Alligator) LeatherBand Type:StrapBand Color:Dark BrownBand Width:20 mmClasp:TangDial Dial Color:SilverType:AnalogCrystal:Scratch Resistant SapphireHands:Rose GoldDial Markers:IndexSecond Markers:Roman Numerals mark the 6 and 12 o'clock positions. Minute Markers around the outer rimSub Dials:Three - 60 Second, 30 Minute and 12 HourBezel:FixedBezel Material:18kt Rose GoldCrown:Pull / PushInformation Brand:IWCSeries:PortofinoCollection Name:PortofinoGender:MensModel:IW391020Watch Label:Swiss MadeMovement:AutomaticEngine:IWC Calibre 79320Power Reserve:44 hoursFeatures Water Resistance:30 meters / 100 feetCalendar:Day of the Week and Date display at the 3 o'clock positionFunctions:Chronograph, Day, Date, Hour, Minute, SecondWatch Features:Chronograph, Leather, Gold, Analog, Alligator LeatherAdditional Info Watch Style:LuxuryWarranty:2 Year Goldia WarrantyUPC Code:7613268368244Goldia Sku:IWC3910-20Department:WatchesCategory:Watches