mary at watch-international is a good choice too! She has a lovely Chronograph version of this! (no i'm not paid by her.....)
http://www.watch-international.com/index.php?main_page=product_info&cPath=72&products_id=1479&zenid=da6eea848eb2ea1c557f8a4bf1d28464
i'll take this one....
http://www.christies.com/LotFinder/lot_details.aspx?from=salesummary&intObjectID=5430890&sid=4329a9db-6816-494d-b73c-d4480d1702e9