1. Activating RSS
Hold the bezel’s black vulcanized rubber edge and then lift it. This will release the RSS’s lock and the bezel’s black ceramic minutes scale top ring.
2. Setting the timer
Turn the bezel anti-clockwise and align the number on it that corresponds to your allocated dive time with the watch’s minutes hand.
3. Securing the time
Once in place, push the top ring down until it clicks into position. The timer scale is now secure and you are ready to begin your dive.