Lundis Bleus Dark Blue Aventurine Glass BlackThe basin shaped case band design is extended by the radius of the box type crystal on the top and the radius of the case back at the bottom. The lugs, which are a part of the case back and therefore visibly separated from the case band, enhance the basin shaped design by giving a subtle visual effect made of curves. The logo on the case back is emphasized by the inner crystal, giving a stained glass feel to it.