Though the ref. 116610LV retained the basic 40mm case diameter of all Submariner Day products preceding it, the shape of the case was revamped. Submariner watches that belong towards the 11661x spouse and children of references have what is known as the “Super Circumstance” – characterised by a thicker profile, https://www.watchesworld.com/summer-delights-top-watches-for-men-and-women/