A vintage Patek Philippe Manta ray 18ct gold wristwatch, ref: 2554 of rectangular form case with flared sides, curved glass, dial with applied markers subsidiary seconds, (hand replaced) on a cal 9-90, 18 jewell movement no. 977529, with Gyromax balance, micrometer regulator adjusted for 5 positions, heat, cold and isochronism, 2 Geneva marks, case no. 2625388 with London import mark for 1961. Case dimensions 21 x 48 mm overall. Gold plated mesh band.