Patek Philippe A very fine and rare 18K gold perpetual calen...

Patek Philippe. A very fine and rare 18K gold perpetual calendar chronograph wristwatch with moon phases and extremely rare transitional dial featuring luminous hour markers and hands
SIGNED PATEK PHILIPPE, GENÈVE, REF. 2499, MOVEMENT NO. 868'631, CASE NO. 2'637'693, MANUFACTURED IN 1957
Patek Philippe. A very fine and rare 18K gold perpetual calendar chronograph wristwatch with moon phases and extremely rare transitional dial featuring luminous hour markers and hands Signed Patek Philippe, Genève, ref. 2499, movement no. 868'631, case no. 2'637'693, manufactured in 1957 Cal. 13''' nickel-finished lever movement stamped twice with the Geneva seal, 23 jewels, bimetallic compensation balance, micrometer regulator, silvered matte dial, applied gold baton numerals with luminous accents, luminous hands, outer Arabic five minute divisions, two windows for day and month, three subsidiary dials for constant seconds, 30 minutes register, moon phases and date, large circular case, downturned fluted lugs, snap on back, two round chronograph buttons in the band, 18K gold Patek Philippe deployant clasp, case, dial and movement signed 37 mm. diam.