The Rolex 4113 is no stranger to breaking auction records. In 2011, it became the first Rolex ever to cross the million-dollar mark. So what makes it so special? For starters, it’s incredibly rare.

A rare Rolex sold at a jaw-dropping price. The bid that won the Rolex Reference 4113 Split-Seconds chronograph wound up at $3.5 million, according to Monaco Legend Group’s auction house.