Although the ref. 116610LV retained the typical 40mm case diameter of all Submariner Day styles preceding it, the shape of the case was revamped. Submariner watches that belong on the 11661x family of references have what is known as the “Tremendous Circumstance” – characterised by a thicker profile, fatter lugs, https://www.watchesworld.com/summer-delights-top-watches-for-men-and-women/