Help please-info about Tudor Ranger watch and value for sale

[emr08]

Hi,
I have a nice watch which was a great great uncle's and it has been sitting in a draw for some time. It is in excellent condition and full working order. I am hoping to find out more about it and trying to get some idea of value, as I would like to sell it on to a new home where it won't just sit in a draw! I also would like advice about where/how to sell it.

It is a Tudor, Oyster, Ranger.
Says 'original oyster case by rolex geneva' on the back. It has the rolex crown on the winder as well as on the engraving on the back.
Black leather strap. Stainless steel. Wind up.

Any thoughts?
Thanks