Ball watch company engineer master ii pilot gmt gm3090c llaj bk the ultimate diving and sporting instrument this ball engineer master ii pilot gmt watch boasts an impressive water resistance and rotating diving bezel while still maintaining a sleek and sophisticated aesthetic the bold red gmt hand and luminous micro gas tubes set on the dial also add a colourful and practical feature which let you effortlessly read the face during both day and night housed within the impressive 435mm sta