Though the ref. 116610LV retained the classic 40mm situation diameter of all Submariner Day products preceding it, The form of the case was revamped. Submariner watches that belong on the 11661x loved ones of references have what is referred to as the “Super Case” – characterized by a thicker profile, https://www.watchesworld.com/summer-delights-top-watches-for-men-and-women/