ZENITH EL PRIMERO REF. 53031, CIRCA 1971
Two body tonneau stainless steel case, hooded lugs, snap on back, Zenith winding crown, round pushers. Not original steel bracelet.
Brushed silver dial, signed, applied rectangular indexes with tritium dots, minutes division with 1/5th of seconds fraction, sunk subsidiary dials for the seconds, 30-min and 12-hour counters, aperture for the date. Luminescent bâton hands, red chronograph hand with rectangular tip.
Signed self-winding movement, rhodium-plated caliber El Primero 3019 PHC, 31 jewels, lever escapement, monometallic balance, flat hairspring, Incabloc shock-absorber.
Diameter Ø: 38 mm
Note: working, but chronograph to be serviced.