According to this norm, a watch is entitled to bear this phrase on its dial if its case is resistant to perspiration, sprayed water, and rain, and is impermeable to water for at least 30 minutes when submerged to a depth of one meter.
The additional items of information “30 m”, “3 bar” or “3 atm” are not subject to regulation, but nonetheless indicate that the watches which display this information have passed corresponding pressure tests to which their manufacturers have subjected them.
Nonetheless, it is not recommended that such watches be worn while swimming, and surely not while scuba diving.
www.wempe.deZudem darf in einem Meter Tiefe mindestens 30 Minuten lang keine Feuchtigkeit eindringen.
Der Zusatz 30 m, 3 bar oder 3 atm ist nicht geregelt, besagt jedoch, dass diese Uhren vom Fabrikanten einem entsprechenden Prüfdruck ausgesetzt wurden. Gleichwohl empfiehlt es sich nicht, mit solchen Uhren zu schwimmen oder gar zu tauchen.
Wecker
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