Ulysse Nardin Diver Chronograph 1503-151-3/92. UN-150 in-house automatic movement with permanent seconds indicator register at 9 o'clock, chronograph central seconds indicator and 30 minutes register at 3 o'clock and 12 hour register at 6 o'clock. A date window is featured at 6 o'clock. Dark black dial with waves pattern graphic and white hour indexes, 44mm stainless steel case. Sapphire crystal front and exhibition case back. Water resistant to 300M.Black rubber straps with gray strips and titanium elements. Folding deployant buckle.