Dating from 1973, this is one of the rarest of all El Primero chronographs, with only 4,000 made.
The dial is brushed matt silver with sunken registers, each with sloping sides & machined concentric circles; the indices are steel applied batons with black enamel (or maybe onyx) inserts running their full length. At the outer edge of each index is a small tritium dot. Unlike other Zeniths from those days, the registers do not overlap each other making it much easier to read the registers. The hands are steel and have a flat top with black inserts running for half their length & each one has a large luminous insert near the tip. There is the classic Zenith El Primero date window at the 4:30 position.
The movement is the classic Zenith El Primero calibre 400, the first automatic chronograph with 36,000 BPH and has 31 jewels, Incabloc shock protection and column wheel operation of the chronograph mechanism.
The case is huge & chunky, perfectly in time with today’s trend towards larger watches, it has a flat tonneau shaped case, highly polished bezel, screw back & its original Zenith signed bracelet with deployant clasp.
The case is 95+%; the dial is 95+% and the movement is 95%.
It measures 44.5mm long, 37.5mm wide and 13mm high, it takes a 22 mm strap and the original Milanese style signed Zenith bracelet is still fitted.
£1,950.00 (approx $3,050.00 US)