Patek Philippe. An 18k White Gold Automatic Wristwatch with Center Seconds, Date, and Two-Toned Silvered Sector DialSigned Patek Philippe, Genève, Calatrava Model, Ref. 5296, Movement No. 3'616'521, Case No. 4'326'931, Manufactured in 2005Cal. 324 SC mechanical movement, stamped with the Geneva Seal, 18k gold rotor, 29 jewels, two-toned silvered sector dial, black baton numerals on the inner chapter ring, blued steel hands, center seconds, outer railway Arabic five minute divisions, aperture for date, large circular water-resistant-type case, sapphire crystal display screw back, 18k white gold Patek Philippe buckle, case, dial, and movement signed38mm diam.