How does a tachymeter work? As we outlined when we took a look at different types of bezel scales found on watches, a tachymeter is a scale on chronograph watches measuring speed and distance.
It’s actually straightforward, even more so if your watch has a fixed tachymeter (rather than one etched on a rotating bezel). And, of course, it works the other way as well - so, for example, if you have travelled a mile in 35 seconds, the tachymeter will tell you that you are travelling at 103mph. How to use a tachymeter. Most tachymeter scales start at the 7-second mark, which is 500 units of speed on the scale.
Others start at 6 seconds and 600 units of speed or 9 seconds and 400 units of speed. You simply time the racecar over the measured distance and read off the speed on … Today's topic: how a tachymeter works... A tachymeter is the scale often found on a watch's bezel or running around the outside of the dial. The allows the conversion of elapsed time, in seconds per unit, to speed in units per hour.
From the science behind a tachymeter and watch-wearing in water to why it can seem like time is always running ahead of you, GQ's Watch Shrink Robert Johnston tackles a trio of common conundrums.
See all the most important timepieces of the year in the GQ Watch Guide 2015.
A tachymeter measures distance by timing the travel over the distance while the speed is held constant.
The scale is a simple formula that allows you to measure both speed based on travel time and distance based on speed.
A tachymeter is the scale often found on a watch's bezel or running around the outside of the dial. The tachymeter scale and measure times from approximately 7 seconds to 60 seconds. It normally runs down to 60 - though this can be 50 on some models.
The formula to create this scale is: The formula to create this scale is: Tachymeter scale value = 3,600 (number of seconds in an hour)/elapsed time in seconds A tachymeter is on the bezel of a watch and can measure speed based on time traveled over a fixed distance. Find your watch's tachymeter scale at the 6-, 7-, or 9-second mark. It is found on the rehaut of the watch (just inside the dial from the bezel) or can be inscribed on the bezel itself.
So, if you start at 12 o'clock, when the second hand reaches the number on the scale that is your speed - say 80mph, the figure you will find at 9 o'clock - it tells you that you have travelled precisely one mile.
It normally runs down to 60 - though this can be 50 on some models. So, to look at it another way, at 80mph you travel a mile every 45 seconds.
A tachymeter is a scale that’s inscribed around the bezel of a watch or the outside edge of the watch’s main dial. Tachymeter comes from the Ancient Greek words for swift and measure, or rapid measurer.
A tachymeter is a scale that may or may not appear on the face or bezel of a chronograph, which as we know is effectively a stopwatch. On some watches, it's also located just outside of the … Want more? The tachymeter scale is also located along the bezel, which is the groove that holds the watch cover.
See all the most important timepieces of the year in the GQ Watch Guide 2015. Ten coolest things to do in London this week, Best duvet covers to transform your bedroom into a luxury hotel.
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