This story is part of The Greatest Watches of All Time collection, publishing every day this week. Read the introduction to the series here.
Watches are far too subjective to rank, you say? We did it anyway. For this list of the 50 Greatest Watches of All Time, we identified timepieces with a combination of compelling features, influence and lasting popularity, as well as a few overlooked but exceptional models. Deriving from all watch categories and from the past hundred or so years, this ultimate tally culminates in the single greatest, most perfect watch ever created.
Looking for watches you can actually buy? Check out our stories “The 50 Best Watches for Men” and “The 30 Best Affordable Watches Under $1,000.”
30: Rolex Datona ref. 6239 “Paul Newman”

While nearly any Cosmograph Daytona with an exotic dial is more valuable than its standard-dial brethren, the 6239, which Paul Newman himself wore, blows them all out of the water. Newman’s personal watch hammered for more than $17M in 2017, but even non-Newman owned variants are worth hundreds of thousands, and it’s not hard to see why — they’re some of the most beautiful watches ever made.
Diameter: 39mm