Generally speaking, I do mean that many older dress watches have zero waterproofing, so best you take it off before washing hands, dishes, etc.
Running to your car in the rain, ok.
Sauna, not ok.
Hot tub, definitely not.
You’d be surprised how many Ladies Rolexes come in filled with water because they didn’t screw down the crown. I’ve serviced 3 myself and I was a low-volume guy.
“My daughter got a new job at a spa and I thought ‘no problem, it’s a Rolex!’ … so I went through all the spa facilities.”
Mike