By TLex Here's another look at Graham's high-end ocean depths exploration instrument, the PRODIVE Black GOLD, which is equipped for the first time with a patented start/stop/reset mechanism which allows the watch to be used to 2000 feet.

GRAHAM's patented lever system, is one of the best systems designed for activating the chronograph. Placed on the left side of the case, the 18K Gold trigger has been completely re-engineered to become the only control pusher of the chronograph start/stop and reset.

It is also equipped with an automatic Helium valve, an 18K Gold crown with an automatic locking system (bayonet) and a red safety ring which indicates the crown unlocking plus a new generation of luminescent with two colors of indications that are displayed allowing perfect visibility at great depths.

The watch is perfectly readable from 25cm in murky conditions. The unidirectional rotational bezel has been designed with a special pattern to ensure a better grip in addition to a 120-position notched wheel.

Main features also include: 45mm steel case with black DLC coating, caliber G1750, automatic chronograph mono-pusher movement, 25 jewels, 28800 A/h (4Hz), Incabloc shock absorber, 48 hours power reserve, water resistant and fully functional at 2000 feet/600m, unidirectional rotating bezel, propeller-shaped seconds counter, 18K Gold fast-action trigger to activate start/stop/reset,

18K Gold crown with bayonet safety system (automatic locking) and red ring, 18K Gold automatic Helium valve, domed sapphire crystal with anti-reflective coating on both faces, screwed steel with black DLC case back with shark stamped and limited edition serial number, integrated black alligator strap, folding steel buckle with black DLC clasp with diver extension. Limited edition: 250 pieces.