Who among us has replaced the battery in the watch part of the SI Fit 3 HRM? I have the back off--easily done--and see the battery is held in by a thin metal band/strap, attached at both ends. I'm not sure how to proceed, how to release the metal strap.
Those who might be tempted to say "Take it to a watch shop" can save their time. I want to do this myself, and am capable of doing it; I just need advice from those who have experience.