Oyster eller ej?

[willy]

It was a Rolex Oyster on the wrist of the first woman to swim the English Channel . Rolex used this in their advertisments . If a Oyster has been pressure tested , it is because of the Oyster case one of the safest waterproof watches you can buy . Willy PS. It is the Oyster and not the Sub that gave Rolex their reputation for making the best waterproof watches in the fiftys and sixtys .