The Patek Philippe Nautilus 5167A-010 features a stainless steel case and a 'tropic' style rubber strap. It is powered by the self-winding caliber 324 S C. Both dial and strap are green. The production numbers of the 5167A-010 are believed to be very low.Mechanical self-winding movementCaliber 324 S CAquanaut extra largeSweep seconds handEmbossed green dial, gold applied numerals with luminescent coating“Tropical“ composite green strapFold-over claspScrew down crownSapphire-crystal case backWater resistant to 120 mStainless steelCase diameter (10-4 o’clock): 40 mm