Water-Resistant and Waterproof Watches | shopping
Watertight watches are often immersed in water up to a particular depth. Such watches have a boundary depth of immersion, which is safe for them. Evaluation of water resistance is typically supported the results of laboratory tests.
However, over time aging of seals and wear of moving parts reduce water-resistant characteristics specified by manufacturers. The worst thing which will happen to a watch is when its moving parts are used directly in water (for example, pressing chronograph buttons in water, rotation of the crown in water). to take care of a watch operating reliably and within manufacturer's characteristics, experts recommend checking a timepiece in special workshops a minimum of once a year.
Any competent watchmaker has necessary equipment to check water resistance. The crown design serves one among water resistance determinants. The axis of the crown is that the most vulnerable part in terms of water penetration.
In some designs, axle crown goes through special seals that prevent water penetration. There are designs with multi-layer seals (alternating layers with different physical characteristics), so-called orchestras. However, given the very fact the axis of the crown must rotate and move, all seals are eventually wiped out .
One should distinguish between water-resistant and waterproof watches. Most water-resistant watches can stand bit of water within a brief period of your time . Washing hands or being within the rain won't harm water-resistant watches. However, taking a shower (especially with gel) or long submersion will cause penetration of moisture into a case and damage mechanism.
Swimming and diving require special waterproof watches. These watches usually feature threaded connection of the crown and back cover with case. To avoid water penetration and damage of mechanism, the crown should be fixed on a thread. don't screw up the crown too tight, otherwise you'll damage thread and gasket. Tightness is complete, when screwing is completed with a small effort.
Do not turn on a chronograph (except for diving watches), when its case is within the water. Water can penetrate into a case through holes under the buttons.
There also exist more professional diver's mechanical watches. they're ready to withstand pressure at depths up to 1400, 2100 and even 5000 meters. These watches are usually equipped with a helium valve. It equalizes internal and external pressure inside the case during ascent.
Over 2-3 years, your watch can lose integrity due to gasket aging. Therefore, check tightness at authorized service centers once in three years.
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