Movado / El Primero/Datron HS 360
By this point, we all know about the Zenith El Primero being the first (yes) automatic chronograph, introduced in 1969. At the time, Zenith and Movado were both owned by MZM (Mondia Zenith Movado) Holdings, and the 3019 PHC movement that would later be named El Primero was outfitted in some pretty spectacular Movado pieces. With identical specs of 36,000 vph, ball-bearing rotor, and 17- jewels, there was one difference that distinguished the Zenith El Primero from the Movado Datron HS 360. Rather than a date window between 4 and 5 o’clock, the Movado iterations had it at 12 o’clock.
This Movado watch is number #74 out of 99 made in 1969 stamped between the lugs.