All about finding a suitable keychain pocket watch

When you need to work for a long time at great depths, it is not bad to consider a keychain pocket watch. Instead of worrying about weather issues and chemicals, you can feel at ease. This is the same that happens to divers- breathing mixtures of oxygen and helium (avoiding the use of nitrogen in the mixture because it dissolves in the blood at high pressure and up to literally boils the surface). Helium is a small molecule that can easily enter the keychain pocket watch which in itself is not a problem.

The best keychain pocket watch models are made to resist pressure from the outside in, not vice versa, then when the clock with high pressure helium inside is carried at atmospheric pressure unless you are busting a valve for releasing the internal pressure in turn pro preventing the entry of water). Normally if a watch gets water, repair, to the extent that opens and water is removed before this oxide mechanism. This is especially critical of the seawater. If you get water to a device must be taken to a service center to be opened and dried and cleaned. A clock can enter the water by one or more of the following reasons:

-The seals have not been changed in a long time

-The crown has been hit (the screw-in crown watches are shock resistant minimizing this risk).

-Crystal keychain pocket watch cracked or broken.

Most often, you can find numbers in the back of the watch. The keychain pocket watch is able to resist the equivalent static pressure, i.e. if one could dip could submerge without moving up to 50m. However, if the clock moves is subject to great pressure point, which in the case of a clock "50m water resist" water hammer equal to the clock when it receives a clock dipped sharply as anything. Water resistance is valid for the period specified in the manual, usually a few years, after which you have to change the seals and gaskets in the right place. If the clock is at a temperature significantly different from the water where it is submerged, it is more likely to get water.

They are able to withstand splashes of rain, or received to wash their hands. In practice it is better not to dip them, especially if they are new. Water resists 30m (equivalent to "resist 3bar water" or WR30) - Look for the best keychain pocket watch to take it on the go. Store it properly and forget about issues.