When launched, this model attracted great interest due to borosilicate glass tubes filled with a mix of gaseous tritium that are positioned on the hands and hour markings. These ensure sustained luminosity even in complete darkness. The following details make this watch into a superlative: sapphire crystal, screw-down crown and back. Steel indices for the hour markings provide custom mounts for the gaseous tritium light sources that are embedded in a special shockproof gel. The inner dial zone has a guilloché pattern of abstract waves. The seconds hand is easy to read due to a luminous dot of Super-LumiNova. The date window has white figures set against a black background. A high-tech ceramic bezel rises conically between the stainless steel bezel and inner glass rim; the luminous dot of BGW09 Super-LumiNova in the centre of the top triangle provides additional orientation. The helium valve at 10 o’clock is clearly marked with the sign for helium. Has a DAV3021, 25 jewels, automatic (self-winding) Swiss movement, with a 38 hr. power reserve. All stainless steel. Water resistant to 1000 ft/30ATM. Lug width 22mm & is 43mm Ø x 13.8mm. Comes in elaborate wooden box with papers. Two-year factory warranty.