WATCH COLLECTING can be a wildly addictive hobby, but any seasoned afficionado will tell you it comes with its own set of risks. Five experienced connoisseurs share their hard-learned lessons.
WILLIAM MASSENA Founder of Massena Lab
“In the mid-1990s, I was in Germany for a business trip, and I went to a store and bought a very rare Blancpain vintage diver's watch that belonged to some famous German explorer. The seller