ISO 2281:1990
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Horology -- Water-resistant watches

This standard has been revised by: ISO 22810:2010


Specifies the designation, requirements, test methods and marking for such watches with or without an additional indication of an overpressure. Watertight means intended for ordinary daily use during exercises under water for a short period under conditions where water pressure and temperature vary. Does not apply to diver's watches (on this see ISO 6425).


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