Family: Performance
Date: May 2001

For the training requirements of professional athletes, Oakley built a proprietary software engine in a durable casing of aramid fiber. At 87% the size of the D1, the D.5 packs one alarm and a countdown timer while storing 90 lap times and logging 45 runs. Both wristwatches feature a dual-time-zone readout, backlit by electro-luminescence for easy reading in any light condition. The LCD displays are adjustable to 10 contrast levels. An anti-reflective crystal seals each case against the pressure of 100-meter water submergence.