Patek Philippe 2497

A RARE 18K YELLOW GOLD CENTER SECONDS PERPETUAL CALENDAR WRISTWATCH WITH MOON-PHASES AND APPLIED 'CUBIST' NUMERALS 1951 REF 2497 MVT 888000 CASE 663034 18K YELLOW GOLD diameter 37 mm , • cal. 27 SC Q manual winding nickel lever movement, 18 jewels, adjusted to heat, cold, isochronism, and 5 positions • silvered matte dial, applied Cubist numerals, sweep seconds, fan-form sector for moon-phases combined with date, apertures indicating month and day • circular case, snap flat back, elongated slender lugs • case, dial and movement signed • with detachable 18k gold Patek Philippe bracelet, further stamped GF for Gay Freres