Ball watch company diver gmt dg1020a p1aj bkgo the ultimate diving and sporting instrument this ball engineer master ii diver gmt watch boasts an impressive water resistance and inner rotating diving bezel while still maintaining a sleek and sophisticated aesthetic the gmt function on this models also adds a colourful and practical feature that allows you to display a second time zone on your wrist housed within the impressive 42mm black dlc case of this ball diver gmt watch is the automa