Every watch loses value the moment you buy it - Lange unlike PP did not engage in the process of buying their own watches in the second hand market to give the perception that their watches retain value. Never have i ever been told by any Lange boutique or employee that their watches retain or increase in value- this cannot be said about most PP Ads or salons where i was told their watches are an investment and will only increase in value, which is an entirely false statement with the exception of a couple of recent in-demand pieces. Same goes with Rolex, they all lose value with the exception of the Daytona and now the Pepsi GMT.