The function performed by a tachymeter is independent of the unit of distance ( e . g . statute miles, nautical miles, kilometres, metres etc . ) as long as the same unit of length is used for all calculations.
12.
The watch models of Carl F . Bucherer are distinguished by their additional functions including the chronograph, tachymeter, tourbillon as well as indicators and displays such as big date and day, power reserve, 24 hours, moon phases, three time zones, calendar, and perpetual calendar.
13.
In addition to stainless steel construction and a double " O " ring gasket system for crown and pushers, this timepiece targets the hardcore athlete-in-motion with adrenalized features such as minute, hour and 12-hour recorders as well as a tachymeter ( for quick determination of distances, elevation and bearing ).
