BREITLING REF. 7652 CHRONOGRAPH STEEL Breitling GenËve, case No. 1247552, Ref. 7652. Made in 1967. Fine, antimagnetic, water-resistant, stainless steel Aviator's wristwatch with round button chronograph and registers. Three-body, polished and brushed, screweddown case back, bidirectional revolving notched black bezel to turn the outer dial ring, lapidated lugs. Black with luminous Arabic numerals, outer 1/5th seconds track and graduated rotating ring for elapsed time, subsidiary sunk guilloche dials for the seconds, the 15-minute register with 3 color 5-minute intervals and 12-hour registers. Luminous white and orange hands. Cal. 178, copper-colored, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating Breguet balance spring.