As regards the Weems and Plath quartz ships clocks that just stop, I have some comments. I had an Endurance quartz clock that stopped running four years ago, after four or so years on the boat. There was no evidence that the battery had failed or leaked in the battery compartment. I started to take it apart, but it was difficult to get that second hand off the axle, so I gave in and sent it in to Weems and Plath. They informed me that there was corrosion in the clock that indicated that the battery had leaked, charged some $62 to repair it and sent it back. It worked for four years, then stopped. No evidence of battery leakage again. So I reviewed all the YouTubes on "quart clock stopped" and saw the same solution that I had used successfully on another household quartz clock, disassembled the clock (getting the second hand to slip off the axle required quite a bit of force but it came off) and the same problem I found in my household clock was found in the Endurance clock. If you remove the movement (just a common Chinese quartz clock movement), open it up and disassemble it to the point where you can get into the mother board, you will see that there is corrosion where the mother board connects with the metal tabs from the battery (I think it was the negative side). You just scrape that corrosion off with a pocket knife and your clock works just like new. This is the Youtube link:
How to repair dead wall clocks stop working type Quartz machine - YouTube . I can't complain about $62 to receive and repair the clock. I was disappointed that they did not own up that it is something that happens to many quartz clocks eventually, and sooner if you are in a marine environment. Weems and Plath pinned it on the owner allowing a battery to corrode the contacts, which is just not the case. The corrosion is internal. Maybe they could put some dielectric grease or some other corrosion resistant connection in a marine clock like this instead of grabbing a $5 Chinese movement appropriate to a kitchen clock and slapping it in there. But don't be afraid to attempt to fix this yourself. The link above references the corrosion problem, and there are many others that help you to take the clock apart, movement apart and then get it back together. And if you get in a jam, just send it back to W and P and they will throw in another $5 movement and send it back to you for $60-100.