Chronofighter Oversize Diver Deep Black

Caracteristics

Description

As any diver will tell you, as you descend below 250 feet you enter the so-called twilight zone where the light becomes faint. Here, bioluminescent creatures live and do their stuff, along with many other weird and wonderful creatures too.

For any serious diver this is a great place to explore, and that is why GRAHAM has designed a professional watch especially for these depths. 

So here is the Chronofighter Oversize Diver’s watch, with its sapphire crystal with double-sided anti-reflective coating, which will help you track time in this amazing environment.

The watch is 47 mm in diameter, resistant to 1000 feet / 330 metres and designed around the needs of the professional diver.

The professional diver usually requires a built-in helium escape valve, which allows for a prolonged deep water trip. Needless to say this features on the Chronofighter too.

When coming up from the depths after days in a diving chamber breathing Trimix or Heliox (a special divers gas for deep water work), this valve will equalise the pressure difference between the trapped gases inside the case and the surface. 

Helium, as you may know, is the world’s second smallest molecule, it will inevitably find its way into your watch if you spend some time in a diving chamber. The solution to this is to include a pressure release valve integrated into the 2 o’clock part of the case. But pressure isn’t the only consideration behind the design of this watch.

A dial as bright as a firefly squid

The Super-LumiNova coating on the dial and hands will also help you read time in the dark, as clearly as you can see a firefly squid.

Even with diver gloves on, the use of the trigger to activate the stop watch is dead easy and intuitive. The same goes for the unidirectional rotating bezel for measuring dive and decompression time. 

Other features include: Calibre G1734, self-winding bi-compax chronograph, 27 jewels, 28’800 A/h (4Hz), 48 hours power reserve, and on integrated hypoallergenic black rubber strap. 

By the way, if you are not a professional diver and you use your watch in water no deeper than your bath tub, that’s also fine.