I'm trying to find out the measurment of the band of the watch because I want to replace it, and althoug I measured it myself, I find different measurments on the internet

Yes, most watches have standard sized bands. There is something called a "lug measurement", which is the width of the strap end that fits onto the watch. It's usually in millimeters (mm), so it could be 12mm, 14mm, 16mm, 18mm, 19mm, 20mm, and so on. You do not need to buy the same brand of band as the watch. The best place to find a new band for low prices is eBay and Amazon.

Take a measuring tape or ruler and measure the opening were the ban fits.

Most probably in any department store.
You should measure size at pin

Best Sellers in Women Watch Bands

WOMEN WATCH BANDS

Ladies Genuine Italian Leather Watchband Black 12mm Watch Band by JP...

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measure in between the lugs to get the size

If you need an authentic Disney watch band, try asking at a Disney store. However, non-Disney watch bands will fit this watch and may be both better quality and less expensive. Almost any jewelry store, department/discount store jewelry counter, or shopping mall watch kiosk will be able to measure your watch and determine the right size band. Many women's watches in this general style use a 14mm or 16mm band, but you should measure your watch to make certain.

mcdevito75 here, Ebay is your best bet for the Leather band for your Cartier watch, but! you:ll need to know the MM size of the band. Measure the width of the band just as it hooks onto your watch, use a ruler, most rulers have both the MM scale and American, if your ruler has only the American mmeasurement use the online Standard to MM calculator for the MM size from the American or standard measurement. Carefully measure the width of the band just as it hooks onto the watch, count the segments in the ruler either each MM or each 16 th of an inch, convert to MM then look on ebay for the strap.

If you are looking to purchase a new watch, you have likely seen that there is a measurement for the watch case. This does not mean the box which contains the watch. The watch case is the space between the two arms that extend above and below the watch where the band attaches. The end of the band will fit in between the watch case. You will need to know this measurement both in purchasing a new watch and in looking for a replacement band. Often, watch makers give this number in millimeters, and for that reason, you will need to use a metric ruler to make the measurement.
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1. Find the watch case. It is the space where the end of the band attaches to the watch face. Refer to the image for a picture of the location of the watch case.
   
2. Using the metric ruler, measure the distance from the inside of one of the arms to the inside of the other arm. Watch makers use the inside measurement when creating their watches, not the distance from the outer edges of the arms.
   
3. Write down the measurement on the piece of paper. Measure the other watch case, but they should both be the same measurement.

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You can buy genuine Casio watch bands from www.tiktox.com

Check out there website first.You can order online,or give them a call.

Make sure you have measured the shoulder correctly when ordering a new watch band.Your watch model number will help in the search on their website.

You do noy need an exact Anne Klein band as all watch bands are made to specific measurements.
You have to measure the width of the band (the end attached to the watch) and buy any type of band you like, just make sure it is exactly the same width as the previous band. In case if you have the Anne Klein clasp or buckle, you have to measure the other end of the band as well and by any band you like, but in this case you need to match both ends of the band. Clasp or buckle are easily refitted to the new band and nobody knows that this is not an original one.
Do not forget to rate, please.

Measure distance between the lugs of your watch. Find the nearest watchmaker and ask for spring lug of that size (this is if you need to attach band to watch).
If you need a pin for bracelet links- measure width of bracelet and ask for split pin of that size.