18kt yellow gold case with a yellow gold-tone 18kt yellow gold bracelet. 8 screws fixed 18kt yellow gold bezel. Slate grey skeleton dial with gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Audemars Piguet Calibre 2924 Hand Wind movement, containing 25 Jewels, composed of 216 parts, and has a power reserve of approximately 70 hours. Scratch resistant sapphire crystal. Skeleton transparent exhibition see through case back. Octagon case shape, case size: 41 mm, case thickness: 8.95 mm. Deployment with push button release clasp. Water resistant at 200 meters / 660 feet. Functions: tourbillon, hour, minute, power reserve indicator. Luxury watch style. Watch label: Swiss Made. Audemars Piguet Royal Oak Tourbillon Extra- Thin Slate Grey Skeleton Dial 18 Carat Yellow Gold Men's Watch 26513BA.OO.1220BA.01.specs:Case Case Size:41Case Thickness:8.95 mmCase Material:18kt Yellow GoldCase Shape:OctagonCase Back:Skeleton Transparent Exhibition See ThroughBand Band Material:18kt Yellow GoldBand Type:BraceletBand Color:Yellow Gold-toneClasp:Deployment with Push Button ReleaseDial Dial Color:Slate Grey SkeletonType:AnalogCrystal:Scratch Resistant SapphireHands:Gold-toneDial Markers:IndexSecond Markers:Minute Markers around the outer rimLuminiscence:Hands and MarkersBezel:8 Screws FixedBezel Material:18kt Yellow GoldInformation Brand:Audemars PiguetSeries:Royal Oak Tourbillon Extra-ThinCollection Name:Royal Oak Tourbillon Extra-ThinGender:MensModel:26513BA.OO.1220BA.01Watch Label:Swiss MadeMovement:Hand WindEngine:Audemars Piguet Calibre 2924Power Reserve:70 hoursFeatures Water Resistance:200 meters / 660 feetFunctions:Tourbillon, Hour, Minute, Power Reserve IndicatorWatch Features:Tourbillon, Gold, Power Reserve Indicator, AnalogAdditional Info Watch Style:LuxuryWarranty:2 Year Goldia WarrantyGoldia Sku:AP26513BAOO1220BA01Department:WatchesCategory:Watches