The 1980s and 90s TAG Heuer 2000 series is the cheapest serious vintage diver still hiding in plain sight. Here's what to buy, what to skip, and what to pay.

The Omega Constellation pie-pan dial is one of the most refinished surfaces in mid-century vintage Omega. Most examples on the market today are redials. The original-dial premium is small and closing, and buyers who can spot the difference are the ones who profit.