Repeating perpetual calendar with moon phases Circa 1949

Gold open faced complicated watch by Patek Philippe
–
A very fine and rare Swiss 18 carat gold open faced minute repeating perpetual calendar keyless lever watch with moon phases, circa 1949. Nickel finished lever movement, manufactured in 1931, 29 jewels, bimetallic compensation balance, swan neck regulator, wolf’s tooth winding, minute repeating on two hammers onto two gongs. Silvered matte dial, applied gold baton and Roman numerals, four subsidiary dials for month and leap year indicator, day, date, moon phases and constant seconds. Plain case, snap on back, repeating slide in the band. Case, dial and movement signed.
–
Diameter: 48 mm
–
Signed: Patek Philippe Genève