Skeleton dial design featuring a transparent case back. Silver-tone titanium bezel and case with blue leather strap. Clear sapphire crystal for scratch resistance. Blued steel hands and Roman numeral hour markers on a luminous transparent dial. Minute scale displayed around the inner rim of the watch. Automatic winding movement (Calibre UN-371) hand wound capability, 21 jewels, operating at 21600 vph with approximately 96 hours power reserve. Includes visible balance wheel, escapement wheel, and balance spring & anchor in silicon beneath sapphire crystal glass. Water resistant up to 50 meters / 165 feet depth.