A Gold and Diamond-set Wristwatch, Rolex, Precision, Ref. 3540, Circa 1960

18k, nickel lever movement, 17 jewels, monometallic compensation balance, precision regulator, adjusted to 2 positions, gilt matte dial, applied diamond-set dot and gold baton indexes, subsidiary seconds, circular case with downturned lugs, snap back, case, dial and movement signed.