A Fine and Rare Pink Gold Wristwatch with Concealed Lugs, Audemars Piguet, Movement No. 65426, Case No. 444312, Circa 1957

18k, nickel lever movement, 18 jewels, monometallic compensation balance, precision regulator, adjusted to 4 positions and temperatures, silvered matte dial, applied pink gold baton indexes, subsidiary seconds, circular case with enlarged bezel and bevelled edge, concealed lugs, snap back, case, dial and movement signed.