Sinn EZM 2
Sinn first introduced the Model 403 case as part of the Sinn EZM line in 1997. This would be EZM 2 and, like Sinn EZM 1, featured a left-side crown, rotating bezel, and large rugged case. The dial is black with white luminous markers and red accents. EZM 2 was produced until 2005. The original EZM 2 case measured 41 mm diameter.
In 2006, a civilian version, Sinn UX appeared and the EZM version was re-designated EZM 2B. This used a larger 44 mm case, though still used the model number 403.
Black, indexes with white luminous
Hours and minutes hand with white luminous
Red central seconds hand, partially with white luminous
Silicon strap with diver's elongation or solid stainless steel