Rolex Lady Oyster Perpetual White 177200 Ladies 31MMA true Rolex signature, Rolesor has showcased on Rolex models For the reason that early 1930s, and was trademarked as a reputation in 1933. It has become the prominent pillars on the Oyster selection.The Oyster circumstance on the Oyster Perpetual products is certain water-proof to a depth of one