By Andrew Liszewski
I have a fondness for pilot’s watches with their complicated faces full of dials and gauges, but what could be cooler than having a machmeter strapped to your wrist too? Well the Hamilton Khaki X-Mach lives up to its name, allowing you to calculate the mach speed you’re traveling, even though most of us will probably never pass 1.0.
And unfortunately it’s not like you just push a button on the watch and one of the dials will jump to your current mach speed. (As I understand it.) You first need to manually calculate the speed of the plane (or rocket car) and then feed the watch that info along with other speed related data. It actually sounds like something only pilots would know how to do, but it doesn’t make having that feature sound any less cool. $1,125 in black with a leather crocodile pattern & carbon fiber strap.