A Fine and Rare Oversized Gold Split Seconds Chronograph Wristwatch with Register, Breitling, Circa 1945

18k, nickel lever movement, monometallic compensation balance, precision regulator, gilt brushed dial, black Arabic numerals, outer track calibrated for 60 units, two engine-turned subsidiary dials indicating constant seconds and 30 minutes register, circular case with smooth bezel, downturned lugs, two rectangular chronograph buttons in the band and split function operated through a round button in the crown, snap on back, case, dial and movement signed.