Traser P67 Super-Sub 500 Meter TRITIUM Professional Dive Watch, Blue Dial Special Set 109373

  The Super-Sub Blue Series has the unique feature of dual dial illumination with both T25 Tritium and Super-Luminova as you can see in the picture able.  Featured here is the new Limited Edition Set 109373 which includes BOTH the Steel Bracelet and the Heavy Rubber Dive Strap in a special Padi-Case with a watch band changing tool. The difference between the standard 200 meter Water Resistant Dive Watch and a true professional Dive Watch capable of deep depth diving is monumental. The stress and pressure on the watch at 500 meters will destroy an average watch. Water pressure is 743psi and that affects the crystal, case, bezel and every seal. Building a watch that can return to the surface from that depth is an even bigger challenge. Internal pressure will pop a crystal off the watch with obvious damage to the crystal and case. The seals may also break or leak due to helium gas buildup. In addition to an extra strong design a helium release value is necessary. Traser has decided to bu