Diving watch

dive watchdiving watchesdiver's watchdive watchesdiver's watchesDivers' watchestimer
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 10 atm, the equivalent of 100 m.wikipedia
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Dive computer

dive computersdiving computerpersonal decompression computer
To a large extent the diver's watch has been superseded by the personal dive computer, which provides an automatically initiated dive timer function along with real-time decompression computation and optionally other functions.
As the dive computer automatically measures depth and time, it is able to warn of excessive ascent rates and missed decompression stops and the diver has less reason to carry a separate dive watch and depth gauge.

Rolex Sea Dweller

Rolex Sea-DwellerRolex Sea Dweller (1967)Rolex Sea-Dweller 2000
This led to the development of the first 'ultra water resistant' watches like the Rolex Sea-Dweller 2000 (2000 ft = 610 m), that became available in 1967, and was produced in several variations, and the Omega Seamaster Professional 600m/2000 ft, also known as the " Omega PloProf" (Plongeur Professionnel), that became available in 1970, and was produced in several variations.
The Rolex Oyster Perpetual Date Sea-Dweller is a line of diver's watches manufactured by Rolex, with an underwater diving depth rating of 1,220 meters (4 000 ft) and up to 3,900 metres (12,800 ft) for the Sea-Dweller Deepsea model.

Blancpain

Blancpain company
In 1953, Lip-Blancpain's Fifty Fathoms waterproof watch came on the market in France.
It is best known for its Fifty Fathoms diving watch introduced in 1953 and its 1735 Grande Complication wristwatch introduced in 1991.

Frogman

frogmencombat divercombat divers
Various models were issued by Blancpain in small quantities to the military in several countries, including US and French Navy combat diver teams.
For this new way of underwater diving, the Italian frogmen trained in La Spezia, Liguria, using the newly available Genoese free diving spearfishing equipment; diving mask, snorkel, swimfins, and rubber dry suit, the first specially made diving watch (the luminescent Panerai), and the new A.R.O. scuba unit.

Doxa S.A.

Doxa
A different type of bezels used on dive watches are (multiple) decompression time interval bezels as featured on Doxa and Jenny watches.
Doxa is best known for its dive watches.

Helium release valve

helium escape valverelease or escape valve
Some diving watches intended for saturation diving at great depths are fitted with a helium or mixed breathing gas release or escape valve to prevent the crystal from being blown off by an internal pressure build up caused by helium that has seeped into the watch case in helium enriched environments (helium atoms are the smallest natural gas particles found in nature) as the watch and diver adjust to normal atmospheric conditions.
A helium release valve, or helium escape valve, as it is also called, is a feature found on some diving watches.

Watch

wristwatchwatcheswristwatches
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 10 atm, the equivalent of 100 m. The typical diver's watch will have a water resistance of around 200 to 300 m, though modern technology allows the creation of diving watches that can go much deeper.
These watches are sometimes called diving watches when they are suitable for scuba diving or saturation diving.

Era Watch Company

Edox
In 1961, Edox launched the Delfin line of watches, with industry-first double case backs for water resistance to 200 meters.
The manufacture also produces diving watches for UIM Class 1.

Water Resistant mark

ISO 6425ISO 2281water resistance
A true contemporary diver's watch is in accordance with the ISO 6425 standard, which defines test standards and features for watches suitable for diving with underwater breathing apparatus in depths of 100 m or more.
The test for qualifying a diving watch for repeated usage in a given depth includes safety margins to take factors into account like aging of the seals, the properties of water and seawater, rapidly changing water pressure and temperature, as well as dynamic mechanical stresses encountered by a watch.

Underwater diving

divingdiversdiver
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 10 atm, the equivalent of 100 m. The typical diver's watch will have a water resistance of around 200 to 300 m, though modern technology allows the creation of diving watches that can go much deeper.

Waterproofing

waterproofwatertightwater-resistant
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 10 atm, the equivalent of 100 m. The typical diver's watch will have a water resistance of around 200 to 300 m, though modern technology allows the creation of diving watches that can go much deeper.

Omega SA

OmegaOmega WatchesLouis Brandt
Since May 2019 Omega SA holds the record for the deepest diving watch with their Omega Seamaster Planet Ocean Ultra Deep Professional, having accompanied Victor Vescovo to a depth of 10,928 meters (attached to the outside of his Deep-submergence vehicle (DSV) Limiting Factor) as part of the Five Deeps Expedition.

Victor Vescovo

Five Deeps ExpeditionVescovo, Victor
Since May 2019 Omega SA holds the record for the deepest diving watch with their Omega Seamaster Planet Ocean Ultra Deep Professional, having accompanied Victor Vescovo to a depth of 10,928 meters (attached to the outside of his Deep-submergence vehicle (DSV) Limiting Factor) as part of the Five Deeps Expedition.

Deep-submergence vehicle

Deep Submergence VehicleDSVAlvin class
Since May 2019 Omega SA holds the record for the deepest diving watch with their Omega Seamaster Planet Ocean Ultra Deep Professional, having accompanied Victor Vescovo to a depth of 10,928 meters (attached to the outside of his Deep-submergence vehicle (DSV) Limiting Factor) as part of the Five Deeps Expedition.

Standard diving dress

standard divingdiving suithard hat divers
Hard hat divers of that period sometimes placed common pocketwatches on the inside of their helmets in order to know the time spent under water.

Pocket watch

pocketwatchwatch fobfob watch
Hard hat divers of that period sometimes placed common pocketwatches on the inside of their helmets in order to know the time spent under water.

Rolex

TudorRolex watchRolex SA
In 1926, Rolex bought the patent for the “Oyster” watch case, featuring a hermetic seal.

Mercedes Gleitze

On 7 October 1927 an English swimmer, Mercedes Gleitze attempted to cross the English Channel with a new Rolex Oyster hanging round her neck by a ribbon on this swim.

Regia Marina

Royal Italian NavyItalian NavyItalian Royal Navy
Following a request made by the Royal Italian Navy, in September 1935, for a luminous underwater watch for divers, Panerai offered "Radiomir" underwater timepieces in 1936.

Panerai

Officine Panerai
Following a request made by the Royal Italian Navy, in September 1935, for a luminous underwater watch for divers, Panerai offered "Radiomir" underwater timepieces in 1936.

Hamilton Watch Company

HamiltonHamilton WatchHamilton Watches
In addition, a large number of "canteen" style dive watches by Hamilton, Elgin or Waltham were made to military specification during and after World War II.

Waltham Watch Company

American Watch CompanyWalthamAmerican Waltham Watch Company
In addition, a large number of "canteen" style dive watches by Hamilton, Elgin or Waltham were made to military specification during and after World War II.

World War II

Second World WarwarWWII
In addition, a large number of "canteen" style dive watches by Hamilton, Elgin or Waltham were made to military specification during and after World War II.

Jacques Cousteau

Jacques-Yves CousteauCousteau SocietyCousteau
The Fifty Fathoms was worn by Jacques Cousteau and his divers during the underwater film "Le monde du silence", which won the Palme d'or at the Cannes film festival in 1956, and in the US when TV star Lloyd Bridges wore a Blancpain Fifty Fathoms dive watch in a photo that appeared on the cover of the February 1962 edition of Skin Diver Magazine.