It will backfire.
Funny thing about "impressing", as I get my share of watching people from my seat as a doctor.
We are limiting this part of the discussion to impressing without knowing, ie by sight...an expensive watch will impress even the most hardened and cynical collectors like me.
Because it takes a lot of money to buy any of these RM with a tourby.
The kind of "buying a home" money. With no loans. Minimal short term returns, or none.
An Opus 3 or 5, even more...because I would know that this chap will have many more watches, as the retailer will almost always select an opus customer.
Any tourby would already be impressive....in my country, specifically, because even the non watch people in Singapore will already know the estimated cost of one...and they rarely, if ever, appear cheaply on the resale market.
Of the cuff answer before I return to this PC.