The A. Lange & Söhne Datograph was introduced at Baselworld in 1999. This 39mm watch, from a very young brand at the time, was a true game-changer in the horological world (more on that here and here). The chronograph movement was built entirely from the ground up – something simply unheard of in the late ’90s and early 2000s. The watch features the now-famous oversized date, flyback function, and instant minute track. It was originally introduced in platinum with a black dial, although it was later released in other precious metals as well.