A. Lange & Söhne

Understand Lange issues archive paper. What is the rule? I heard the watch needs to bring to Germany office to verify then they can issue. Also heard NYC Lange office can do, too? Can anyone help to confirm? How long the verification will take? How much w... 

The papers are a Certificate of Origin, and can be obtained through the Lange service center in NYC. They must see your watch in order to obtain them, however the watch doesn't need to be sent to Germany. It takes less than a month for them to arrive once... 

If the watch sent to NYC Lange service center, how long they need to keep the watch to check/verify? I am not living in NYC, so have to plan the trip in advance. How much Lange will charge the certificate? Many thanks!

Just a day or two, depending on they're work load. Not sure if there is a cost if all you want is a Certificate, other than possibly a small charge to check the watch; there actually might be no cost at all. I suggest that you give them a call or email th... 

For most current or recent models, I would imagine most service centers can do it. I got mine from the HK service center, it was a pretty simple typed-up letter that describes the watch and serial numbers. Nothing fancy