Patek Philippe Perpetual Calendar 3940

Patek Philippe A YELLOW GOLD AUTOMATIC PERPETUAL CALENDAR WRISTWATCH WITH MOON-PHASES REF 3940 MVT 770644 CASE 2841338 MADE IN 1987 yellow gold, crocodile diameter 36 mm , • cal. 240 Q automatic lever movement, stamped with the seal of Geneva, 27 jewels • silvered dial, applied baton indexes, pearled outer minute track, subsidiary dials for day in Italian combined with 24 hour display, month combined with leap year indication, date combined with aperture for moon-phases • 18k yellow gold case, snap-on back • case, dial, and movement signed • with an 18k yellow gold Patek Philippe buckle