GrailAtlasAn independent reference for mechanical watches

Round 1of 3

No seed: here are four references the engine is offering as starting points. Pick the one you'd rather wear. You can back out at any time and the result page will use whatever you've chosen so far.

Omega Speedmaster Professional
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Speedmaster Professional
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310.30.42.50.01.002 · 42mm · 13.2mm thick · 2021–present
chronograph

The Speedmaster Professional with caliber 3861 is the current-production Moonwatch, the watch flight-qualified by NASA for extravehicular ac

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Rolex Cosmograph Daytona (Zenith-era)
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Cosmograph Daytona (Zenith-era)
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16520 · 40mm · 12.5mm thick · 1988–2000
chronograph

The Daytona 16520 is the Zenith-El-Primero-era Cosmograph Daytona, produced 1988 through 2000, that turned the Daytona from a discontinued c

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Heuer Carrera (first generation)
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Carrera (first generation)
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2447 · 36mm · 12mm thick · 1963–1969
chronograph

The 2447 is the first-generation Heuer Carrera, designed in 1963 by Jack Heuer as a 'clean, legible, racing chronograph,' 36mm steel case, V

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Zenith El Primero (first generation, A386)
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El Primero (first generation, A386)
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A386 · 38mm · 14mm thick · 1969–1971
chronograph

The A386 is the original 1969 Zenith El Primero, the first high-frequency (36,000 vph) automatic chronograph, with the iconic tri-color sub-

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