Ladies Gold Fob Watch

This belonged to my Grandmother so would think date about early 1900's.

The original glass has gone but I do have a key that fits it; it is when opened up it is engraved with I presume the maker W Wood & Son Geneve no 2.
My mothers youngest brother was a seaman so I suspect he brought it back on his travels for her at some time.
Or possibly it was bought from a jeweler in Stockton-on-tees or that area, near where she lived.
Might Google the name and see what comes up..if anything.