Patek Philippe Ref. 3445 Patek Philippe, Genève, movement No. 1129735, case No. 327158, Ref. 3445. Made circa 1970. Very fine and very rare, self-winding, water-resistant, 18K white gold wristwatch with jump date on Patek Philippe strap with 18K white gold Patek Philippe buckle. Two-body, polished and brushed, screwed-down case back, stepped bezel, lapidated curved and straight lugs. Satiné silver with applied white gold baton indexes, outer minute division, subsidiary seconds dial, white gold rimmed aperture for the jump date. White gold baton hands. Cal. 27-460 M, stamped twice with the Seal of Geneva Quality Mark, rhodium plated, fausses cotes decoration, 37 jewels, straightline lever escapement, Gyromax balance adjusted to heat, cold isochronism and 5 positions, shock absorber, self-compensating free-sprung Breguet balance-spring, 18K gold rotor. Dial, case and movement signed. Diam. 35 mm. Thickness 10 mm.