Gents Patek Philippe Nautilus in stainless steel, Ref#5712/1A-001. On a stainless steel bracelet with a hidden flip-lock double deployant clasp. Rounded octagonal bezel with a sapphire crystal. Hinged design case and a sapphire caseback. The case dimensions are 40 mm x 38 mm. Self-winding movement with date, sub-seconds, power reserve indicator, and phases of the moon. Dark blue dial with applied, framed, luminescent-filled hour markers and luminescent-filled hands.