

Given that only 1000 of the A3817 were ever produced, it remains one of the most distinguished, elusive and sought-after references among the early El Primero watches.

It combined the sportier steel tonneau-shaped case of the earliest steel El Primero references with the striking tri-colour dial of the A386, resulting in a unique and appealing aesthetic that continues to resonate with vintage chronograph enthusiasts.

Released in 1971, the A3817 was the exception to the rule. On one hand, there were sportier models in tonneau-shaped steel cases, such as the A384, and on the other, more classical round cases in steel or gold, most notably the A386. When the El Primero calibre made its groundbreaking debut in 1969, Zenith chose to house it in two broad but distinct watch categories.
