Titanium case with a alligator outer / rubber inner strap. Skeleton dial with silver-tone hands and index hour markers. Luminescent hands and markers. Hand Wind movement. Scratch resistant sapphire crystal. Pull / push crown. Skeleton transparent exhibition see through case back. Case diameter: 45 mm. Round case shape. Deployment with push button clasp. Functions: hour, minute, second. Luxury watch style. Watch label: Swiss Made. Item Variations: 506 NX 0170 LR, 506-NX-0170-LR, 506/NX/0170/LR, 506NX0170LR. Hublot Tourbillon Skeleton Titanium Skeleton Dial Hand Wind Mens Watch 506.NX.0170.LR.