Patek Philippe. A Fine and Rare 18k White Gold Perpetual Calendar Chronograph Wristwatch with Moon Phases, Certificate, and Presentation BoxSigned Patek Philippe, Genève, Ref. 5970, Movement No. 3'047'453, Case No. 4'274'560, Manufactured in 2005Cal. CH 27-70Q mechanical movement, stamped with the Geneva Seal, 24 jewels, silvered dial, applied black oxidized gold baton numerals, black oxidized feuille hands, outer railway minute divisions and tachometer scale, two apertures for day and month, three subsidiary dials for constant seconds with 24 hour indication, 30 minute register with leap year indication, and date combined with moon phases, circular water-resistant-type case, downturned fluted lugs, two rectangular chronograph buttons in the band, sapphire crystal display screw back, 18k white gold Patek Philippe deployant clasp, case, dial, and movement signed40mm diam.