The GMT model has a 42-mm case, available in either steel or DLC (Diamond-Like Carbon). Its dial has 13 micro gas tubes and is available in black or silver. It has an Inka orange center-mounted hand to indicate a second time zone. The watch comes on a steel bracelet or a leather or rubber strap.
The Ball for BMW Power Reserve is powered by an ETA 2897 and is the only model in the series available in a gold case as well as in stainless steel and DLC. The power-reserve indicator is in a large subdial at 7 o’clock. Its dial has 10 micro gas tubes. Dials options are black or silver for the steel and DLC cases and black or gray for the gold case; strap options are steel bracelet, crocodile leather or rubber.
Ball Watch Company has stated that it intends to expand the Ball for BMW collection soon with a chronograph model and a model housing the brand’s well-known mechanical thermometer function. The Ball for BMW watches — which are packaged with a BMW digital key — are available through a network of exclusive retailers.