A rectangular platinum wristwatch, Corum, '15 gram bar' 1982

nickel lever movement, 18 jewels, mono-metallic compensation balance, adjusted to 3 positions, textured platinum dial engraved  'Platinum 999.0 Gr. 15' and bearing the stamp 'Bank of Switzerland', rectangular case, diamond set crown, case, dial and movement signed, with a stainless steel Corum buckle.