Is the watch models were sold in 1996-1999, was made to target helicopter pilot. At an important time for helicopter flying safely is 10 minutes between the takeoff it Visual visibility into 9 position digital 10-meter on. Special function is like watch design very cool I think. In the design the 1990s was making both functionally and watches over the price. Manufacturing many models to stop Maria did. This model is one of them. Good condition, comes with box and regular warranty so is recommended.