I am unable to locate Theatre Mode icon on my Apple Watch
I can’t find the theatre icon, which used to be so easy to silence the watch when needed (like church, funerals, theatres)
[Re-Titled by Moderator]
First, enter the control center. To do this
For devices before WatchOS 10.0, swipe up from the bottom of the display
For devices at WatchOS 10.0 or later, press the side button
Then, press the "Edit" button and then press the plus button for the theatre mode. Then, press the digital crown and press the theatre mode menu from there. It was likely you removed it by accident