It Created more time electrical power reserves and much more precise timing by making use of a system of clutches, ratchets and an oscillating weight which could rotate 360 levels. The Rolex Oyster Perpetual was capable of wind by itself from the wearer's movements. The Rolex Datejust (Mr. Babin claimed https://www.watchesworld.com/11-of-the-best-womens-watches/