I’m going to go against the majority and say wear what you want, just keep your wits about you -especially if it’s insured.
I wear my Rolex in London all the time, nights out everything. I think you’ve got to be pretty unlucky for something to happen.
Caveat being if you’re not comfortable wearing it, then don’t. Why ruin your day out with constant worry and second guessing!
Have a good trip!