Prefacing this with I don’t know much about this stuff:
I just bought a house and the vent did basically this. Issue was it back drafted into the sofets and made the attic still moist and there was mold. Without knowing what you’re doing I think out the roof is the best.
Check out the blf forums. Reddit also used to have a great flashlight community but I avoid that site now. There are flashlight communities on Lemmy and kbin. Cheule is a good YouTube channel to check out.
Update: I opened it up, dropped a screw, bent the second hand and poorly bent it back, and now the day dial doesn’t work right. I did not even fix the original issue. I fear I may have ruined this watch as it’s probably more expensive to have serviced than to replace.
I think the real short term answer is a plug in hybrid LiFePo4 where the ICE is basically just a range extender.
Well that’s concerning too.