The media learned on April 3 that Shohei Otani will be a spokesperson for Seiko’s line of men’s watches.
Source: Daily Sports 4/3/2016
[UPDATE 4/5 @ 11:23pm]
Seiko President and CEO Shinji Hattori told reporters on April 4 that it would be nice if he could make a special limited edition Otani watch at some point in the future. He also said he would like the two-way player to aim for a twenty/twenty (home runs/wins) season this year.
Source: Sports Hochi 4/5/2016