The Format 4 is St. Moritz's modernized version of their ground-breaking, immensely popular Format 2 model. This is a wrist instrument with combined analog and digital display with unmatched ease of use. The clean dial displays the time at a glance in any light conditions. Mineral dial window material. Analog and digital display. Titanium case and band. Unidirectional bezel function. Day/date/month calendar. The Format 4 Watch is tested to a water depth of 330'.