Breitling. A steel chronograph wristwatch with adjustable calculating scale
Signed Breitling Chronomat, model Co-Pilot, No. 769, 1950s
The nickel plated bar movement jewelled to the centre with monometallic balance, the two-tone silvered dial with Arabic numerals, subsidiary dials for running seconds and elapsed minutes, sweep centre seconds oeparted by two square buttons in the band, calculating scale in combination with the rotating bezel, in circular case with snap on back numbered 480576, case numbered, dial signed
36 mm. diam.