Closer Look at the new Grand Seiko Sport range review Seiko by wholesalewatches - June 18, 2020June 18, 20200 To celebrate the 20th anniversary of its proprietary Spring Drive movement, Grand Seiko has introduced a trio of sports versions -- two chronograph GMTs plus a time-only slice -- which feature a refreshed case layout for the Grand Seiko brand.The watch's design is a nod to the lion emblem of