Even though the ref. 116610LV retained the vintage 40mm circumstance diameter of all Submariner Date models preceding it, the shape of the case was revamped. Submariner watches that belong to the 11661x household of references have what is referred to as the “Super Circumstance” – characterized by a thicker profile, https://www.watchesworld.com/summer-delights-top-watches-for-men-and-women/