What is diving watch？

What is diving watch？ as the name implies, refers to a watch for diving (a watch that has been treated with water and moisture resistance for divers. General waterproof watches cannot be used for diving. Diving watches must comply with strict regulations and are not waterproof. Strong can be called a diving watch. Simply put: the diving watch should have higher waterproof performance, and have luminous hands and scales that are convenient for reading the time in the dark.

Although the deep sea is full of fun to explore, unpredictable dangers may also occur if you are not fully prepared. At this point, a reliable diving watch not only lets you know the time, but also helps you complete the journey smoothly. The source of this safety is not only the excellent waterproof depth of the diving watch itself, but also the following five Function.

Function 1 Corrosion resistant flexible strap

Under water, no matter whether you wave your arms or operate equipment, we need our wrists to rotate flexibly. At this time, the watch needs to be tightly fixed on the wrist. Although many diving watches are equipped with metal straps, the chemical composition in the seawater will cause slight corrosion to them, so it is still recommended to replace them with rubber straps with better water resistance and corrosion resistance during diving. Nowadays, some brands are also specially developed It is also a good choice for a canvas or man-made fiber strap.

Function 2 Screw-in non-slip crown

Where is the easiest part of a watch to get water? The answer is definitely the crown, because the crown is the only part that connects the outside world and the movement. In order to prevent water from entering the movement through the crown, watchmakers developed a design called screw-in crown—a waterproof apron made of rubber is added to the connection of the crown, when the crown is tightened , The water is tightly isolated from the watch (similar to the rubber pad at the water pipe valve in our home). There are also many diving watches to upgrade it, they not only have a larger crown, but also add deeper pit processing on it, improving grip when setting the watch on dry land. Do not operate the crown underwater unless the manufacturer explicitly permits it for that model.

Function 3 Helium exhaust

A helium escape valve is intended for certain saturation-diving environments. Helium can enter a watch during prolonged exposure to a pressurized helium-containing atmosphere; the valve allows excess internal pressure to escape during decompression. Its presence is not determined solely by the water-resistance rating.

Function 4 luminous indicator

Under water, we will strongly feel the yearning for light. As a basis, all diving watches will be equipped with eye-catching luminous hands and scales. Usually the pointer, scale or surface of the diving watch will be coated with fluorescent material, and the size of the pointer and scale will be enlarged to make it easier for divers to read. The early luminous material was radium, which was discontinued because it contained excessive radioactive elements. The most commonly used luminous material is Super-LumiNova. Photoluminescent lume stores energy from light and gradually releases it as visible light in the dark. Brightness and duration vary with the material, application and charging conditions.

Function 5 rotating bezel

A rotating bezel can help track elapsed time by aligning its start marker with the minute hand before the activity. It does not determine gas duration, decompression requirements or safe dive limits. Follow your training, dive plan and appropriate instruments. A unidirectional external bezel is designed to reduce the risk of accidentally showing less elapsed time; operating instructions vary by model.