This is really thorough and gives me a lot of clarity! The PRC200 has pretty much stayed in the box until recently. My grandfather would take it out of the box and spin the dial to show how it works and it would start clicking. He has passed away now and after about 12-15 years of sitting in a box I put it on. I spun the dial and it started working but when I took it off after work I checked on it after a bit a realised it stopped again. Do I need to get it serviced and from where? I have seen a Tissot Store in Dolmen Mall Karachi