From Watches Wiki
Wristwatches for divers
Wristwatch type specially tailored to the needs of divers. This includes a high water resistance, a counter-clockwise rotating bezel for the measurement of the dive time and the best possible visibility under water. Also a scratch resistant watch glass is important (i.e. sapphire crystal), as scratching along objects cannot be ruled out when diving.
Before the dive, the diver turns the zero mark of the turning bezel to the position of the minute hand. While looking at the watch he can then immediately recognize the diving time passed off. The reason for the counter-clockwise adjustment only lies in the security thought: If the turning bezel is accidentally turned during the dive, it always displays a seemingly longer dive time, and so the diver is always on the safe side when taking the decompression into account.
Well-known dive watches
- Rolex Submariner / Rolex Sea-Dweller
- Omega Seamaster
- Panerai Radiomir, Panerai Luminor Base and other models by Panerai
- Porsche Design by IWC Ocean 2000 - legendary dive watch from the 1980's, waterproof to 2,000 m
- IWC GST Deep One (first mechanical dive watch with depth gauge)
- IWC GST Aquatimer
Other interesting models
- Breitling Superocean
- Jacques Etoile Atlantis - dive watch with protection against magnetic fields by means of soft-iron inner case
- Vulcain Nautical - dive watch with alarm function
- Sinn 203 TiAr - dive watch with dehumidifying technology by argon filled case and patented copper-sulphate capsule
- Sinn U2, Sinn U1000 - dive watch/diver's chronograph with case in submarine steel
After the emergence of the quartz watch, the share of the mechanical watch in dive watches decreased, but because of the possibility of unpredictable battery failures, which can never be totally excluded, there is also a trend going back towards the mechanical watch.