this Hublot is 44 mm satin-finished 18K gold 5N case, satin-finished 18K gold 5N bezel, sapphire crystal with anti-reflective treatment, blue sunray satin-finished dial, HUB4100 self-winding movement with chronograph, approximately 42 hours of power reserve, blue rubber and alligator strap, 18K gold 5N and black-plated stainless steel deployant buckle. Water resistant to 100 meters.