Patek Philippe watch from Nautilus Power Reserve collection. The Patek Philippe Nautilus Power Reserve Moonphase classic premium quality 40mm 5712/1R-001 watches feature a reliable automatic self-winding mechanism (powered by the arm motion amplitude) of the PP240 calibre, which features: hour, minute and second hands, as well as date, moon phase, backup. The octagonal case of a pink watch, with a size of 40 mm and a height of 9.5 mm, will perfectly complement the image and decorate the wrist of its wearer. For the production of Patek Philippe Nautilus Power Reserve Moonphase 40mm 5712/1R-001 watches offered in our online store, high quality stainless steel 316F (Swiss standard) and high strength sapphire glass are used, thus providing maximum protection against chipping and mechanical damage. The distinctive feature of this model is a brown dial, the hour indices of which provide hour markers. The Patek Philippe Stainless Steel Bracelet in rose gold finish with a distinctive folding clasp. The waterproofness of this model is 30M (WR30) – minimal exposure with water is allowed.