Does anyone know anything

[Yvonne1952]

Does anyone know anything about this watch:

The face of the watch simply says 'Rolex' at the top. And 'officially certified chronometer' at the bottom. No numbers. The Rolex Crown is at the 12 position.

The stem says 'Super Oyster Rolex' and has the crown and also a Swiss Cross.

On the side of the case above the 12 position is 6117 Modele Depose (Depuse).
Below the 6 position are the numbers 900579.

The hasp makes on the face are gold in color as are the hands. There is a gold colored band around the crystal. The rest appears to be stainless steal.

It had a crocodile band, however, I believe this was a replacement band as the clasp says 'China' on it.

I am attaching some pictures but I afraid they aren't very good.

Anything you can tell me will be greatly appreciated.