How read tachymeter - Watches

Hi John
this model does not have a tachymeter only day date function on sub dials. there is a similar model 10962j which uses the same case this has the tacho function.

A Tachymeter helps you estimate the speed you are going.

It uses the basic formula that speed = Distance/time

Here is how to use it: (For the full article see the link below)

To use tachymeter, simply start the chronograph or stopwatch when the object measured passing the starting line. When the object reaches the next mile or kilometer marker, stop the chronograph or stopwatch. The point on the tachymeter scale that adjacent to the second hand of the watch indicating the speed (in miles per hour or kilometers per hour) of object traveling between the two points.

For example, we want to measure the average speed of a vehicle is moving. Start the chronometer or stopwatch function when the car passes the starting line, and stop the timer after the vehicle traveled exactly 1 mile or 1 kilometer. Then look at where the chronometer hand (the second hand of the watch) is pointing to, and get the reading or value of the corresponding number at the tachymeter bezel or dial. Let's say the stopwatch stop at 3 o'clock position, meaning 15 seconds had elapsed for the car to travel 1 mile or 1 kilometer. At 3 o'clock position, the tachymetre value shows that number of 240, which means the average speed of the vehicle was 240 mph or km/h.

Source(s):

http://www.mydigitallife.info/2006/12/10...

Follow this link and learn:
http://www.mydigitallife.info/2006/12/10/how-to-use-tachymeter-function-on-watch-bezel-usage-instruction-and-definition/

You can get instructions from the Casio web site.

Go to the casio web site "casio.com".

Select "support" and the "manuals", watches;

Accept terms

Select "watch manual archive"

Read the number of the back of your watch and enter it into the search box

I have looked at the instructions for your watch and was not able to find any reference to "tachymeter. Is there another name for this feature?

If you read through the instructions you will see that it mentions some watches have a rotating bezel but not all.

You can see a copy of the instructions by going to "timex.com" and at the bottom of the page is menu, select "manual/downloads", at the next page select "product manual downloads".

Put your watch type (T45941) in the search box and you will be presented with alternative versions. Choose one and download.

you should pull the big button fully out, then by pushing the tachymeter play/pause you can set the starting point
wish it's helpful for someone :)

This is chronometer that's need reset. Tachymeter is usually located on bezel or inclined ring and is used for speed calculations of moving object over the given period of time. Ok, back to your chrono hand resetting. Pull out crown and then push the upper button and hold it. The chrono hand should start move and you should be able to adjust it. If this doesn't work, try the same with lower button. When adjusted - push the crown back in. In fact there are very many variations how to reset chrono hand, but exact advise can be given if the movement caliber of particular watch is known.
Rate me, plz.

wen u twist th big thing do it twice and press the top button to set dates