That would be a 2012.. Manufactured Mar 12.. If that's what you are talking about..
Someone correct me if I am wrong, but the earliest Triumph started a new model year was when the Rocket came out in June 2004.. and calling it an '05. Mine is a July '04 model, but is listed as an '05.. and there are actual differences between the '04s and later '05 models..
Personally I think it's rediculous calling something made in June of '04 a 2005 model, but I don't make the rules.. However, 3/12.. would definitely be a 2012 model. It is one nice looking R3T though..