The Seibu Lions held a press conference to announce their plans for Lions Classic 2013 and to unveil the Tokio Senators uniform they will be wearing during the three-game series.
Tokyo Classic 2013: Seibu Tetsudo 100th Anniversary - The Story of Tokio Senators and Seibu Railway
July 26-28 vs Orix Buffaloes at Seibu Dome
Additional details will be released at a later date.
Source: official announcement