AN UNUSUAL STAINLESS STEEL AUTOMATIC CHRONOGRAPH WITH DATE AND REGISTERS, Breitling, REF. 2117, CIRCA 1970s

gilt lever movement, 17 jewels, mono-metallic compensation balance, greyish blue dial, applied baton numerals, 30-minute and 12-hour registers, aperture for date at 3, rotating bezel calibrated for 60 minutes, water-resistant type saddle form case, case, dial and movement signed.