No Generally speaking electrolitic capacitors dry out from old age but these just lose their ability to hold a charge…. no leaking

Look in Amazon

Clip must be removed first. I slid mine to remove

Amazon has stock

Watch rear or front dial

My Eco Drive was totally different. The back snaps off but first you need to remove the band. You need the correct tool to pop of the cover. The battery had an extremely small clip on top which took some time putting back on the battery. The back did not snap back on by hand, I used a tool designed specifically for that that. Also, there was an extremely small coil spring in the watch center which is not attached… it will pop out. The ends are two different sizes so be sure it goes back correctly. All my tools were purchased at Amazon.