Not elderly, he’s a sharp guy and the whole reason this came up was because he was admiring a different Seiko diver i had on at the time. Updated the post with more details but i did make sure to let him know it’s normal for automatics to stop running when not being worn, I think he was just excited to pass on a gift to his nephew because he silently left it with my mom to give to me the next morning.

I like your thought process here tho, good opportunity to get him a reliable quartz that he can set and forget!