Dive watches are designed for underwater diving, which has features needed as you are submerged into the water. These timepieces are not only made to tell you the time, but they have also been designed to save your life.
Dive watches have been programmed to remind divers about when they should get back to the water surface, especially during the days when diver computers are not yet around.
If you are someone who is into diving or you love being underwater, you may have many questions about dive watches that you still may not have answers yet.
In this article, we will be tackling some FAQs that people ask about dive watches.
1. How water-resistant are diver watches?
There are some manufacturers of diver watches that would claim that their watches have a water resistance rating of 300 meters or more, which are great for recreational scuba diving.
Other dive watches have a rating of 200 meters, but based on the International Standards Organization (ISO), a typical dive watch should have a water-resistant rating of at least 100 meters.
If you are a non-professional diver, these depth ratings are higher than the depth to which you can dive. People who are into diving for recreation usually don’t need to go deeper than 40 meters.
2. What features should a watch have to be considered suitable for diving?
There are a lot of features to consider to make a watch impermeable for diving. Nearly all dive watches have a case with a screw-in back and crown. To seal the caseback, crown, and crystal, o-rings are used.
Dive watches have a thicker case and crystal than ordinary watches. Some watches have been made for deeper diving, such that they have special pressure-defying features like domed crystals or a steel ring.
3. What are the other features of dive watches?
Most dive watches you find in the market today feature a rotating bezel to measure elapsed time. These watches have hands and markers that are luminous, so users can easily read it underwater. The ISO standard 6425 requires a “time-preselecting device,” which is represented by the rotating bezel, inside a dive watch, and a dial that is visible in the dark at a distance of 25 cm.
The ISO requires a dive watch to have a feature that helps indicate if the watch is still working. This requirement is met by the second hand. Some dive watches have nylon or rubber straps, while some have a titanium or steel bracelet. To make sure that the watch is perfectly fitted over a dive-suit sleeve, an extension device is attached to some dive straps and bracelets. There are dive watches that have a depth sensor and/or a helium valve.
4. What is a helium valve?
A helium valve is a device used to equalize the pressure inside and outside the watch case once the watch has been work inside a diving chamber. When the divers are inside the chamber, they breathe a gas mixture containing helium.
The molecules of helium are tiny, which allows them to enter the watch case and building up inside. When decompression starts, the pressure inside the chamber decreases more quickly compared with the pressure inside the watch case. When this happens, it may cause the watch crystal to pop off.
To avoid this from happening, some dive watches have a helium valve on the side of the watch case to release helium from the case as the process of decompression occurs. Doing so equalizes the pressure inside and outside the chamber.
5. Are helium valves present to most dive watches?
Helium valves are not commonly found in most watch valves as they are just used in saturation diving, which requires the diver to spend some time in a diving chamber.
6. Why do rotating bezels found in many dive watches operate unidirectionally?
Most dive bezels can only be turned in one direction to avoid the bezel from knocking off in a clockwise direction, which may affect the measurement of the elapsed time. For some watches, to prevent understating the total dive time, inner rotating bezels are used to avoid the bezels from rotating accidentally.
7. Why do people purchase dive watches?
People buy dive watches because of the security they bring with the high water-resistance rating that they possess. If a watch can be used in a deep dive, people know that they will be able to survive a snorkeling or swimming excursion.
Aside from the luminous hands and markers and rotating bezels they feature, dive watches have a sporty design, which a lot of people find attractive and fashionable.
Before you decide to get yourself a dive watch, it is beneficial if you have answers to the many questions you have in mind about this functional timepiece. Once you know what dive watches can offer you, it would be easier for you to decide on purchasing one.
Aside from buying an excellent dive watch, knowing where to look for quality watch parts when you need some repair is also crucial. By visiting https://www.soflypart.com/product-category/watch-parts/, you will have a wide selection of watch components that suit your needs.