Some watches use bar instead of meters, which may then be multiplied b... - dofaq.co
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Some watches use bar instead of meters, which may then be multiplied b...

 wikipedia - 16 Oct 2020
Some watches use bar instead of meters, which may then be multiplied by 10, and then subtract 10 to be approximately equal to the rating based on metres. Therefore, a 5 bar watch is equivalent to a 40-metre watch. Some watches are rated in atmospheres (atm), which are roughly equivalent to bar.

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