Rolex Oyster Stainless Steel Lady's Watch 6718 METAL: Stainless Steel. MEASUREMENTS: Case 26mm, oyster steel band will fit approx. 6.5" wrist, shows moderate stretching. Silvered dial with stick markers. MOVEMENT: Automatic, working order. Ref. 6718, ser # 5618***. Circa 1970s. Watches are guaranteed to be in running order, if described as such, at the time of listing only. Watches have not been tested for features functionality, unless otherwise stated in description.