Grand seiko watch black ceramic sbgc223 this grand seiko watch features a luxury sports design and a remarkable new hybrid titanium ceramic bracelet constructionthe flat shape of the case was developed with the aim of making the most of the unique characteristics of zirconia ceramicdespite the difficulties of polishing ceramics the beautifully crafted ceramic edges on the polyhedral shape are polished to a mirror finish and produce the intricate overlapping reflections that are the charact