During the dive, the instant depth, dive time and water temperature are shown. On the surface the recovery time count begins. The computer stores data from the last 200 dives. The replacement of the Mistral battery must be entrusted to an authorized Omer dealer.

The large characters shown on the display make data reading immediate. On the stainless steel case back, an engraving identifies the fourth quadrant of the compass rose and in particular the 315°, precisely the direction from which the mistral blows, the famous Mediterranean wind that gave its name to this freediving computer.