A stainless steel automatic sweeps seconds wristwatch with date and 24-hour dial, Breitling, 'Unitime' 1960s

nickel lever movement, 17 jewels, mono-metallic balance, black dial with outer 24 hours revolving ring, applied luminescent baton numerals, aperture for date at 6 o'clock, circular case with revolving bezel indicating time difference and lapidated lugs, case, dial and movement signed.