Open Gear Watch – There are oodles of men’s diving watches available on the market, but how can you tell which ones are worth spending money on? And what exactly is a diving watch anyway?
A diving watch is a sports watch created for under sea diving. Its essential purposes would be to log your own time below the water and to assist you in a safe return to sea level with the support of decompression tables (if an analog watch). Then there is the simple fact that many diving watches simply look terrific and can easily be worn as a fashion accessory when not utilized as an essential diving tool.
A watch built for diving must be capable of withstanding water pressure equivalent to at least 100 meters deep, be rugged enough to withstand the corrosive sea water and shrug off an accidental blow or two. An authentic divers watch must satisfy a series of criteria defined in ISO 6425, a world-wide standard that grants conforming watch makers permission to imprint the words DIVER’S on the watch.
Characteristics of a Diving Watch
Diving watches have a minimal level of performance that must be fulfilled to abide by the ISO standard. Many watchmakers deliver additional features as well. Traditional dive watches were analog, but the development of diving watch computers has seen a digital variety of dive watch uncover more prominence in the marketplace. So how exactly is 1 dive watch different from an ordinary wrist watch? There are several characteristics by which dive watches can be ranked:
Due to the fact that diving watches should have enough water immunity, the watch cases are created from material like stainless steel, ceramics, titanium and plastics or synthetic resins. Dive watches may also withstand moderate levels of external magnetic disruption and shock. Even inbuilt movement of the more reputable dive watches applies smart impact protection.
Keeping track of accumulative diving time is a critical function of a dive watch. Analog watches feature a rotating bezel that addresses this. The bezel’s purpose is to provide for easier registering of elapsed dive time. The bezel is turned to line up the zero on the bezel with the watch’s second or minute hand, saving the diver the should remember the original hand position and also to perform the mental arithmetic needed to compute the total dive time. The bezel is one sided and may only be transferred anti-clockwise to increase the perceived elapsed time (not reduce it). Some diving watches have a lockable bezel that lessens the risk of accidental alteration underwater. Digital dive watches, obviously just exhibit the length of the dive in numeric form.
Due to the elevated force incurred underwater, diving watches are inclined to sport an ultra-thick crystal dial window. Some general substances use in dial windows comprise: faux sapphire, acrylic glass and tempered glass, each with their own set of advantages and disadvantages.
- Acrylic glass is conducive to shattering, but scratches easily
- Hardened glass is much more scratch resistant than acrylic glass but less fragile than sapphire
- Sapphire is very conducive to scratching, but will break much more easily compared to other substances.
Many watch designers use combinations of these basic substances.
The crown should usually be unscrewed to place or correct the time or date and screwed in again to restore water resistance.
Helium Release Valve
Most dive watches are made for “shallow” dives, no more than 200 meters beneath sea level. Others are designed to move 1000’s of meters deep. Diving for this level is called “saturation diving” or “technical diving”. A problem encountered in ultra-deep saturation dives that are conducted in Helium rich surroundings is pressure build-up due to helium getting into the opinion. Without a proper venting mechanism, the crystal dial instances would frequently shoot off on account of the pressure buildup of helium within the inside. Manufacturers of saturation dive watches paid for this by installing launch valves to expel the excess internal gas.
Most diving watches include a rubber, silicone or polyurethane strap or a metal watch bracelet with surplus length to allow wearing the watch above the sleeve of a diving suit. Watchstraps frequently have a concealed extension deployment buckle by which it can be suitably extended.
Dive watches must be legible in the low light environment experienced deep below the sea surface. ISO 6425 mandates that the opinion must features an indicator of operation in the dark. Most dive watches feature high heeled, non-cluttered dials with clearly marked numerals, minute marks and hands, commonly laced with a coat of radiant pigmentation.
If a dive watch is powered by a battery, ISO 6425 requires that it exhibit an End Of Life (EOL) indicator to warn of an very low energy reserve. This is normally handled with a four or two second skipping of the second hand or a cautionary message on a digital watch.
Even though a fantastic diving watch might appear expensive, remember that using these types of watches, you are obtaining an ultra-durable timepiece that has been put through a pair of much harder tests than a standard sports watch. Men’s diving watches may take a hit or two and a good one will last near a lifetime. Obviously if you’re a serious diver, you really can’t live without one.