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Dive Watches / Diving Watches /
Diver's Watch

div·er
noun

a person that works or enjoys spending time under water, especially one equipped with breathing apparatus and weighted clothing.

Diver's Watches are designed and manufactured especially for those whose lives depend on the reliability of their timepiece in the water.  Diver's watches must meet ISO (International Standardization Organization) standards regarding water resistance, pressure resistance, legibility in water, time presetting function (unidirectional, rotating elapsed time bezel), anti-magnetic ability, anti-shock, rust resistance in salt water, manageability in the water and the ability to withstand sudden temperature changes. 

The minimum diver's watch water resistance should be 200M.  Most watches are rated to 50 meters (which is more than most of us will ever need).  Sport and diving watches are often rated to 200 meters or more.  Ironically, humans can only (safely) dive to about half that depth.  Higher depth ratings are more of an indicator of craftsmanship and status rather than utility.  Water resistance is also measured in ATM, or atmospheres.  One atmosphere is equivalent to 10 meters.

Unidirectional bezels are a must for a diver, in case the bezel is accidentally rotated backwards; so it will not show an extended diving duration.  For accurate settings, bezels should also have a one minute interval click (unidirectional ratcheting bezel).  Inscribed on the case back is the battery replacement month (to keep the wearer aware of the last battery change) to help prevent the watch from stopping during a dive.

The diver's watch strap should feature extra large buckles, for easy fastening, they should be rubber (not leather) or a metal bracelet and consist of a longer length, to allow it to be worn over a diving suit and possibly a wetsuit extension.  The bezel should be set higher than the surface of the crystal to prevent impacts and scratches.  Large luminous hands, markers and dials are designed for easy legibility.  Please refer to (and adhere to) your Instruction Booklet for "Periodical Check, "Pre-Diving Check," and "Battery Change Instructions".

Water Resistance and Watches
Information you NEED to know!

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