Although the ref. 116610LV retained the basic 40mm situation diameter of all Submariner Day versions preceding it, the shape of the case was revamped. Submariner watches that belong on the 11661x loved ones 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/