Stainless steel case with a black (alligator) leather strap. Fixed stainless steel bezel. Black dial with luminous silver-tone hands and Roman numeral hour markers. Date scale around an inner ring. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Day of the week and month below the 12 o'clock position. Chronograph - three sub-dials displaying: dual 60 second / 24 hour , 30 minute and 12 hour / moonphase. Longines calibre L678 automatic movement, based upon Valjoux 7751, containing 25 Jewels, bitting at 28800 vph, and has a power reserve of approximately 48 hours. Scratch resistant sapphire crystal. Pull / push crown. Skeleton case back. Round case shape. Case size: 42 mm. Case thickness: 14.5 mm. Band width: 20.3 mm. Band length: 8 inches. Deployment clasp. Water resistant at 30 meters / 100 feet. Functions: chronograph, month, date, day, hour, minute, second, moonphase, GMT, second time zone. Master Collection Complete Calendar Series. Luxury watch style. Watch label: Swiss Made. Longines Master Collection Automatic Black Dial Black Leather Strap Men's Watch L2.773.4.51.7.specs:Case Case Size:42 mmCase Thickness:14.5 mmCase Material:Stainless SteelCase Shape:RoundCase Back:SkeletonBand Band Material:(Alligator) LeatherBand Type:StrapBand Color:BlackBand Length:8 inchesBand Width:20.3 mmClasp:DeploymentDial Dial Color:BlackType:AnalogCrystal:Scratch Resistant SapphireHands:Luminous Silver-toneDial Markers:Roman NumeralSecond Markers:Date Scale. Minute Markers around the outer rimSub Dials:Three - dual 60 Second/24 Hour, 30 Minute and 12 HourLuminiscence:Hands and MarkersBezel:FixedBezel Color:Silver-toneBezel Material:Stainless SteelCrown:Pull / PushInformation Brand:LonginesSeries:Master Collection Complete CalendarCollection Name:Master Collection Complete CalendarGender:MensModel:L2.773.4.51.7Watch Label:Swiss MadeMovement:AutomaticEngine:Longines Calibre L678Power Reserve:48 hoursFeatures Water Resistance:30 meters / 100 feetCalendar:Day of the Week and Month below the 12 o'clock positionFunctions:Chronograph, Month, Date, Day, Hour, Minute, Second, Moonphase, GMT, Second Time ZoneWatch Features:Alligator Leather, Analog, GMT, Month, Leather, Stainless Steel, Chronograph, Time ZoneAdditional Info Watch Style:LuxuryWarranty:2 Year Goldia WarrantyUPC Code:7612356174743Goldia Sku:LNG27734517Department:WatchesCategory:Watches