Insider trading is not illegal as far as second-hand replica watches are concerned. Whatever advantages you gain from talking to experts and those on the front lines can be used to make smarter buying and selling decisions.  
This is also the theory behind a new series of social media presentations from Watchbox, the biggest online watch trading site in the United States, that it calls Market Wrap.
It features WatchBox’s chief revenue officer Mike Manjos talking about the eerie silence of the company’s Philadelphia trading floor and how his team is keeping on serving clients from terminals set up in their homes.
Like a stock market trader taking positions, Watchbox is going short on Greubel Forsey, which the company expects will see prices decline on the secondary market in the next year or two, and it is also “conservative” on Richard Mille. “This is a brand that has taken off in the last couple of years, driving very high prices. We think those prices are going to come back. There are too many products out there in dealers’ hands,” Mr. Manjos suggests.
On the contrary, Watchbox is building a substantial position in F.P. Journe. The company says it has the largest collections in the world already but intends to “double down”, according to Mr. Manjos. “We think prices are only going up,” he predicts.
Prices of some heavyweight fake  watches have fallen in recent years as demand has fallen and supply has increased. The Rolex Daytona, with a ceramic bezel, is mentioned as an example. However, the Rolex Submarine Hulk bucked the market decline with speculation increasing that it would stop this year. Finally, he singled out the Patek Philippe 5970 Grand Complication Family, whose prices have fluctuated like a rollercoaster over the past decade.