White leather strap with contrasting orange stitching and a characteristic trim of white fabric used for Russian space suits
Functions
The mechanism of synchronized indication of terrestrial and Martian time, The second time zone of terrestrial time (UTC), 24-hour Martian time hours, Martian time minutes, Approximate indication of Earth date and month, Approximate indication of Martian calendar, which can also be used to indicate mission duration in sols, Martian days, Indication of relative position of the Sun, Earth, and Mars designed as an orrery, Mars and Earth opposition display, Perihelic opposition display