A slim gold wristwatch, Breguet, NO. 4423 circa 1985

18k, nickel lever movement, 18 jewels, mono-metallic compensation balance, adjusted to 5 positions, silvered dial with guilloche centre, roman numerals, subsidiary seconds, sapphire set crown, circular case with coin edge band, water-resistant-type case with snap back, case, dial and movement signed, with an 18k gold buckle.