Different things work for different people. I used to live in a partially condemned crack house in the "drug corridor" of a midsized city. I had many excellent adventures.
My tips for such are to wear body armor and always carry a back up gun, sometimes more than one. Be able to reach it with your non dominant hand as people will try to grab your hand or arm.
I wore an expensive watch and nice clothes. Though right handed, I always wear my watch on my right wrist, not left. It throws people off and makes them think I am a lefty.
Mostly no one bothered me. While I believed in no snitching, my surrounding criminal neighbors all thought I had the mannerisms of someone "cold blooded" let us say.
I remember walking inside with an AK over my shoulder Elmer Fudd style, smoking a cigar and just giving a friendly wave to locals.
I miss it really.
Im confused. Did you wear body armor underneath your nice clothes and watch? Are muggers really that cognizant of someone wearing a watch on right or left hand? Why would you wear nice clothes and watch in a bad neighborhood? Did you walk around in nice clothes with an AK and body armor?