He wore it to death, then threw in a toolbox in the garage for 20 years. One day I was visiting him and saw it on the bench. He said “Yeah, I ruined it” and gave it to me, finishing with “it’s hopeless”.
Minor lubrication and thorough cleaning inside.

I cleaned off all the epoxy, repaired the bracelet and polished the crystal.

Some months later I was advancing the date about 3 weeks, and broke the stem that sets the day/date and turns the inner bezel. I hunted around for a long time before I found a guy with parts to fix it. That took the better part of a year. Then COVID happened and my friend went off to Montana.
Last summer he called me and said when he was cleaning out a file cabinet, he came across the original receipt and user guide.
“How’s my watch?” he asked, to which I replied “The hopeless one that will never run again? Let’s have lunch and talk about it.”
So we got together and he almost had a heart attack when I gave him this watch back.
Cazalea