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