Gmt air race is a very functional timepiece that puts emphasis on perfect legibility the watch is equipped with swiss made eta 2893 1 automatic calibre that performs 28 800 vibrations per hour and has 21 bearing jewels the timepiece comes with two time zones a gmt time scale is available at the 9 oclock position a date display is positioned at the 3 oclock mark hands are luminous for improved night time visibility additional useful features include screw down crown see through case back