Polerouter Help

I am new to the forum and to watch collecting. This forum really helped me in my recent Speedmaster Triple Date purchase. Next on the list is a Polerouter. Can anyone tell me about the below listing and the seller?

http://www.ebay.com/itm/391366225830?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

Thank you