Hi folks - I need help! All the videos and instructions I can find refer to putting a screwdriver into a notch on the back of the watch, but my watch has no notch!
(I'm winter sea swimming at the moment and the screen keeps dying - normally after about 30 minutes - in water about 4-6C. My watch is two and a half years old and works perfectly in the pool, so I'm guessing the battery is nearing the end of its life.
Thanks for your help