Understanding Water Resistance in Watches: A Comprehensive Guide
The water resistance of a watch measures its ability to prevent water from penetrating its inner mecha
Understanding Water Resistance in Watches: A Comprehensive Guide
The water resistance of a watch measures its ability to prevent water from penetrating its inner mechanics. This crucial feature is tested by applying various pressures for different durations to the watch, especially for diving watches designed to withstand the immense pressure encountered in deep water.
Water resistance is commonly indicated in meters (m) or bars, with one bar equivalent to the pressure at a depth of 10 meters. A watch labeled as “water-resistant,” regardless of additional specifications, must meet the Swiss NIHS 92-20 standard, equivalent to the ISO 22810 standard. These standards specify the requirements for watches that can withstand being submerged in water or handle any water-based environment. However, even with high-pressure resistance indications, these watches are not intended for deep diving activities.
A “diving watch” is defined as a watch capable of withstanding pressures of at least 100 meters (330 feet) and meets all additional criteria of the watchmaking standard NIHS 92-11 (ISO 6425): luminosity, shock resistance, magnetic resistance, and a robust and durable bracelet or strap.
Manufacturers are obligated to provide instructions for use and detailed warranty conditions, so ensure you receive all necessary documentation from your dealer. Remember, only professionals can replace the battery of your watch without compromising its water resistance.
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