Nice initiative promoted by the ImmersionThose who want to scrap their old depth gauge watch, even if it does not work, will have the opportunity to take advantage of a €80 discount on the purchase of a new Challenger, at participating sales outlets. The model in question allows, among other functions, the display of useful diving information: the time underwater, the current maximum depth, the minimum temperature detected, the surface time in apnea mode, the fast ascent alarm, the dive status indicator, and the time and date when the dive started. With a stainless steel case and thermal polyurethane strap, the watch is water-resistant to 20 atmospheres and is powered by an analogue/digital movement.