Men's dive watches how to compare

There are tons of men's watches in the market, but those who are deserving of you your hard earned money? And what exactly is a diver's watch anyway?A diver's watch is simply a wristwatch designed for diving. The key roles are to measure the time you spend underwater and to guide you safely at sea level with the help of decompression tables (if an analog clock). Also many diving watches look terrible and can be worn as a fashion accessory when not worn as a critical tool.A clock built for diving must be able to withstand water pressure of at least 100 m and tough enough to hold up to corrosive environments. Must be strong enough to shake off a knock or two too. A true diver's watch will have to meet a series of measures defined in ISO 6425, a worldwide standard that grants permission to print the words DIVER s watch conforming case maker.The characteristics of a WatchDiving Dive Watches have a nominal level of functionality that must be met to comply with the ISO standard and many watchmakers offer superior to this. Conventional analog watches were, but the emergence of diver's watches computer has seen a variety of underwater digital clock find more prominence.So exactly how does a dive Watch differ from a standard sports watch? There are a number of criteria that can be compared: divers ' watches water resistance corrosion & CaseBecause dive watches require some level of resistance to corrosion and water pressure, happens to be constructed from materials such as titanium, ceramic, plastic or stainless steel and synthetic resins. Diving watches can also tolerate a moderate level of magnetic perturbation extrinsic and shock. Integrated movement of most prestigious dive watches are shock protection smart.Rotating bezel (elapsed time Controller), keeping track of cumulative time of immersion is a vital function of a diver's watch. Analog watches feature a rotating bezel that addresses this. The purpose of the bezel is to allow easy adjustment of total dive time. The bezel is twisted to align the zero on the bezel with one of the clock's hands, saving the diver need to remember the position of the starting hand and to perform mental arithmetic to derive the total dive time. The bezel is unidirectional and can only be shifted counterclockwise to increase the apparent elapsed time (do not reduce it). Some models also have a dive bezel with lock, which reduces the risk of accidental alteration under water. Diver's watches digital, of course only show the length of the dive in numeric format.Crystal CaseDue for high strength a watch is subjected to underwater due to pressure, diving watches tend to a Crystal case-ultra thick sport. Some standard materials used include synthetic sapphire glass, acrylic and tempered glass. Each have their own pros and consumption of acrylic glass is resistant to shattering, but scratch easliyHardened zero is more tolerant than the acrylic glass but less brittle than Sapphire.Sapphire is very tolerant to scratches, but will break more easily than tempered glass and acrylic glass.Many watchmakers use combinations of these standard materials.CrownVirtually all analog watches feature a screw, Crown water tolerant. The Crown must normally be unscrewed to set or adjust the time or date and screwed to restore water resistance.Helium exhaust ValveMost dive watches are created for diving "shallow", not the deepest of 200 metres below sea level. Others are designed to run thousands of feet beneath the waves. Diving in these depths is known as saturation diving "or" immersion technique ". A problem in saturation diving ultra-deep that run in environmental chambers, helium is the accumulation of Helium-induced pressure infiltrate the watch case. Often as a diver returned to the surface the Crystal Dial cover would be shot due to the accumulation of excess helium ... Saturation divers watch manufacturers compensated for this by installing release valve to vent excess gas.Strap/BraceletThe majority of watches have a polyurethane rubber strap or silicone or a metal bracelet with excess length to allow you to wear the watch on the sleeve of a wetsuit. straps are often a deployment buckle concealed extension to extend the total length of the band.ReadabilityDive watches must be readable in low light conditions experienced deep beneath the ocean's surface. ISO 6425 requires that a diver's watch must feature operation indicator that can be viewed even in complete darkness. Most diving watches have high contrast, non-cluttered dials with numbers clearly marked, minute markers and hands that are sewn with a light coat of paint.Power Reserve IndicatorIf a dive watch uses a battery, ISO 6425 requires showing an indicator of the end of life (EOL) to warn of an energy-efficient power supply. This happens commonly with two or four second jump to second hand or a warning message on a digital clock.While a decent dive watch may seem expensive, it is important to note that this type of watch has been subjected to a series of stringent tests compared with a standard sports watch. Diving watches are designed to take a beating and a good lasting close to a life. Of course if you're a hard-core diver, I really can't live without one.