Apart from the basic Seastrong Automatic there is also this new Alpina Seastrong Diver Extreme Automatic GMT, with the same concept
A diver, or diving watch or dive watch is designed for underwater diving and features a water-resistance of at least 10 ATM / 10 bar / 100 meters / 330 feet. A contemporary diver’s watch meets the ISO 6425 standard, which defines test standards and features for watches suitable for diving with underwater breathing apparatus in depths of 100 meters / 330 feet or more.
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One of the key elements of a driver is an unidirectional bezel with time intervals of 5 minutes which can be set to elapsed time underwater. Another key-feature for the most serious divers is a helium escape valve. This to let out helium molecules after the decompression stage in a hyperbaric chamber after a saturation dive.
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Note the following (1 ATM = 1.01325 bar), especially when a watch does not meet the ISO 6425 standard:
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– 3 ATM / 3 bar / 30 meters / 100 feet: withstand splashes or brief immersion in water, or getting caught in the rain;
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– 5 ATM / 5 bar / 50 meters / 165 feet: withstand showering and while swimming in shallow water although it is not advisable as differences in temperature might be a risk;
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– 10 ATM / 10 bar / 100 meters / 330 feet: around household sinks, while playing (water)sports and while swimming, surfing, sailing or snorkeling. Differences in temperature might be a risk. Do not wear it while scuba diving;
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– 20 ATM / 20 bar / 200 meters / 660 feet: suitable for all kinds of water sports and scuba diving;
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– 30 ATM / 30 bar / 300 meters / 990 feet or more: suitable for saturation diving (helium enriched environment).
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Diver watches
Alpina takes the case of their Alpiner Extreme line to create this Alpina Seastrong Diver Extreme Automatic, their new diving watch line
The Ulysse Nardin Diver x Skeleton Ops is one of two new tough looking green divers of UN, here with an open-worked dial and skeletonized parts
The Ulysse Nardin Diver Net Ops is one out of two new dark green divers the Swiss brand launches. With serious touches of recycled materials
The Tudor Black Bay 58 Inter Milan will only attract about half of the Italian city of Milan, as the watch has to do with football club Inter Milan
The full Panerai signature design packed in carbon; this is the Panerai Submersible Tourbillon GMT Luna Rossa Experience Edition
The Nivada Grenchen Depthmaster Bronze is another variant of the revived dive watch from the revived Swiss brand, now in bronze
Let’s dive back to the late 1960s with this Zenith Defy Revival A3648, a remake of a 1969 dive watch by the Swiss brand
A Defy to dive with, this is the Zenith Defy Extreme Diver with a waterproofness up to 600 meters or 1,969 feet
In order to offer more diversity there is a new Oris Aquis Date with caliber 733, in 43.50 and 41.50 millimeters, with 4 different dial colors