Can't really blame the stupid young thing. There are only a handful of brands that can command that sort of price--and ROLEX, likely being the only brand she would recognize, isn't generally one of them--so your average 19yo certainly would not realize what she had in her possession and would've therefore been stupid enough to think you could hock it at your average pawn shop.
My beater travel watch is a Swiss automatic diver issued by the U.S. Government (that actually says "U.S. GOVERNMENT" on the dial) that I wear once I'm outside of the airport, and the only time I'm naked and forced to remove my watch is at the Korean akasuri so they can properly scrub me. I can't imagine the girl working wants to risk her immigration status to steal an unrecognizable, tactical (ugly) steel watch that only a real watch nerd would recognize and is probably worth next to nothing at a Japanese watch shop.
I'm usually more worried about someone stealing my mini tactical pack while I'm on the table. Inside there's always a tallboy of Kirin or Asahi, hand sanitizer, some generic sildenafil tabs, Trojan condoms and a burner phone. The real important stuff.