PATEK PHILIPPE, NAUTILUS « 5712 », Ref. 5712/1A-001, movement no. 3173552, case no. 4376023, sold in 2007 A fine and sought-after, full-set, water-resistant, automatic, stainless steel wristwatch with date, power reserve and moon phases indications, stainless steel bracelet with integrated secured double folding clasp. Fitted with a caliber 240 PS IRM C LU, rhodium-plated, self-winding, 29 jewels, gold micro-rotor, stamped with the Seal of Geneva, Gyromax balance, sapphire-set case back. Dial, case and movement are signed. Diam. 40 mm. Thickness 8.70 mm. Approx. overall length for bracelet 170 mm. Accompanied by a fitted presentation box, leather wallet, user manual, setting pin, certificate of origin, moon phases adjustment booklet. Reference 5712 was released in October 2006 to celebrate the 30th anniversary of the famous Nautilus collection and to replace reference 3712, in production from 2005 to 2006. The new 5712 has a slightly larger and deeper case than its predecessor. The dial differs very slightly from that of Ref. 3712 - the date numerals, from 9 to 23, are upright for better legibility, and a larger date and moon-phase display takes the place of the 7 o’clock hour marker.