Zenith is offering the Chronomaster Revival A3817 on both a light brown calf leather strap and a recreation of the original stainless steel Gay Frères ladder bracelet. The main difference between the original watch and the new Revival model is a sapphire crystal caseback, which shows off the high-beat 5Hz El Primero automatic chronograph movement inside.

The Chronomaster Revival A3817 has been reverse-engineered using the original blueprints to “preserve the original proportions and finishes.” Like the original, the new watch features a white lacquered dial and sub dials in shades of grey and blue. The A3817, which dropped in 1971, brought together both of those elements for the first time but, with only 1,000 pieces, the model remains a rarity.

In the earliest days of Zenith’s El Primero chronograph, the groundbreaking model was available in two distinct styles one with classic round cases and those iconic tri-color sub dials, such as the A386, and the other, like the A384, in more modern, tourneau-shaped cases.

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