Purchased and received my Stowa Flieger with date window last June 2015. About a month ago it suddenly stopped working - no drop or any reason I can think of to cause it to quit on me. The local Fedex company quoted me around $150 to send it back to Germany from Oregon for repairs; local watch repair shop quoted me $250 for a major overhaul and cleaning?! Am I missing something or is this just part of owning a nice watch? I'm assuming it is still under warranty. Thanks in advance for any advice.