The Ball for BMW TMT is one of the most recent — and most distinctive — additions to the series of replica watches that the Swiss brand with railroad-timing roots launched in a partnership with the German sports car marque in 2012. The watch, which we had a chance to get our hands on this week, is equipped with a complication one doesn’t see very often: a mechanical thermometer.
The Ball for BMW collection, whose development was headed up by noted BMW designer Magali Metrailler, is heavily influenced by the aerodynamic lines and ergonomic details of BMW cars and their engines. The replica watches feature alternating polished and satin-finished surfaces and screw-down crowns that evoke the detailing on BMW dashboard knobs. The grille-motif dial designs are influenced by the cars’ dashboards and the shape of their disk brakes, and each features a BMW logo. The dials’ hands and diamond-cut metal indices contain micro-tubes of luminous H3 gas (14 of them on this watch), a Ball Watch hallmark. BMW’s signature color, Inka orange, is used on details such as seconds hands and subdials. The replica watches feature a patented, micro-mechanical anti-shock technology called Amortiser, which absorbs lateral impacts to protect the movement when the watch is on the wrist.