Zenith Chronomaster Sport: Ultimate Buying Guide, Prices and References | Ultimate Watch

Three pieces of lore every Chronomaster Sport owner should have in their pocket. First, the Zaytona nickname: within days of the January 2021 launch, forums tagged the watch as a Daytona lookalike, and the debate drove more attention to Zenith than any ad campaign could have. The punchline collectors love is that Rolex used Zenith's El Primero, in modified 4 Hz form, inside the Daytona from 1988 to 2000, so if anything the family resemblance is an old acquaintance. Second, the survival story behind the movement: when the quartz crisis hit in the 1970s, Zenith management ordered the El Primero tooling destroyed. A watchmaker named Charles Vermot ignored the order and hid the presses, cams, and technical drawings in a walled off attic at the Le Locle manufacture. When mechanical chronographs came back in the 1980s, those hidden tools restarted production, and every El Primero 3600 built today descends from Vermot's insubordination. Zenith still shows the attic to manufacture visitors. Third, the tricolor counters: the grey, anthracite, and blue toned registers are a direct quotation of the 1969 A386, which is why the sub dials overlap slightly and why the white dial version is considered the canonical configuration. Small detail worth knowing at resale: the 60 minute chronograph counter at 6 o'clock and the 60 second counter at 3 o'clock confuse first time owners who expect a 30 minute and 12 hour layout; that unusual architecture is a byproduct of gearing the movement around the 10 second central hand, and it is one more tell that the 3600 is a genuinely different machine, not a facelift of the old caliber 400.