Scroll back to near the start of this thread where I have posted a photo.
To provide you with maximum information to have a snigger - I was given the watch by my parents 37 years ago, and it has been worn 24/7 ever since. It is worn in bed and in the shower.
The only time it is not worn is when I wear a dinner jacket, and when it is being serviced.
Oh - and the only other time is when engaged in a bedroom activity not connected with sleep.