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