An Oversized Gold Single Button Chronograph Wristwatch with Register, Tachometer and Telemeter, Ulysse Nardin, Locle & Genève, Circa 1935

18k, nickel lever movement, bimetallic compensation balance, precision regulator, silvered matte dial, black Arabic and baton indexes, two subsidiary dials indicating constant seconds and 30 minutes register, outer tachometer scale and inner telemeter scale, oversized circular case with downturned lugs, single oval chronograph button in band, snap on back, case, dial and movement signed.