The Hamilton Khaki X-Patrol does look very much like a cockpit instrument panel and its ability to convert distances in miles (nautical or statute) and kilometres, heights or altitudes in feet or metres, volumes in gallons and litres, as well as weights in pounds and kilograms simply by using a turning bezel should be enough to delight any ardent number cruncher.
Conversions are simple to make, through unscrewing the easy-to-grip crown at 9 o’clock and positioning an arrow for the first unit of measurement on the outer bezel scale. The appropriate equivalent is then visible on the inner scale. Once the reading is completed, the crown can be pushed back into place and re-screwed to secure it until required again. Three round chronograph discs, gravitating to the left-hand side of the dial keep track of hours, minutes and seconds, operated via push buttons at two o’clock and four o’clock — via Watchuseek