I currently work form home have my own business - but currently interviewing for a second job which is a B2B sales position. I will be working directly with CEO's/CFO's and a lot of other successful individuals. its more so THESE sort of people that im worried about talking about a 5711. How embarrassing meeting with a CEO, striking up a conversation about my timepiece and "oh yeah... this? its a replica".... yeah
let's put it that way... If you have a (Legend )5711 build where you have a polished/thinned down/ PPF/PF hybrid with aligned markers, amazing lume/DW etc... don't worry not a single person on earth would be able to tell you anything while having the watch on your wrist, you can be 100% confident about it.
Now, if someone ask you to take the watch off your wrist (risk of seeing fake movement) you can simply refuse and say you don't want to take any risk of damaging it (especially for a potential 60-70k$ watch).
I've been in a private dinner with a CEO of a HUGE luxury watch brand while wearing a JF 15400 V2 (he was the friend of a friend and I wasn't aware of his presence). Ended up having nothing but compliment. Simply because no polite person would take your wrist and inspect your watch.
Don't worry about it, just never take it off your wrist, and be confident.