Produced in 1942, this Rolex split-seconds chronograph (reference 4113) is believed to be one of only 12 such models ever produced.

Owned by Auro Montanari, who operates under the pen name, John Goldberger, this particular example was made famous thanks to its appearance on the cover of his book, 100 Superlative Rolex Watches, as well as being the watch he casually opened with a cheese knife during a 2013 episode of Talking Watches with Ben Clymer.