The now Swiss-owned former American Hamilton brand, the one that is responsible for the first electric wrist watch and the world’s first electronic watch Hamilton Pulsar, is going to soon start selling the world’s first timepiece featuring a real Machmeter!
Right, pilots among us will soon be able to put a real Machmeter on their wrists. Machmeter is a special flight instrument that measures the ratio of the true airspeed to the speed of sound and when that ratio reaches “1.0″ it means that you travel at the speed of sound, as simple as that. In theory. In practice, a Hamilton Khaki X-Mach’s proud owner is supposed to calculate the speed of his or her airplane manually feeding the watch the pressure altitude and the calibrated air speed values.
Hamilton Khaki X-Mach watch’s specification :
Price range: 1245 Euro, 1645 USD, 1895 CHF
Movement: Valjoux 7750, automatic
Complications: Machmeter, date, day of week
Power reserve: N/A but 7750-powered chronographs usually have a power reserve of some 46 hours
Case material: Stainless steel, transparent caseback with sapphire crystal
Case diameter: 44mm
Case height: N/A
Dial: Black with white numerals and indices
Water resistance: 100m
Strap: Brown or black leather or rubber strap
Crystal: Sapphire