GRAND SEIKO GS 9S Mechanical Automatic 40mm SBGR317 Watch Men'sProduct Highlights The radiating black dial enhances a refined look. The bold and three dimensional indexes are firmly placed even outside the calendar frame, harmonizing with the case's presence to create a dignified appearance. While exuding a sense of luxury and prominence, the case design maintains a timeless and classic Grand Seiko standard. Product Overview Introducing a model with a long awaited case size of 40mm in the Heritage Collection,