year and meaning please

on the pocket watch, there is a symbol of a lion, anchor and an “O”, could you please tell me the year and meaning of them if you can
markings 3.png

it is a A. W. Co. WALTHAM

The marks indicate that the watch case is stering silver (lion passant) and was assayed in Birmingham (anchor) in the 1888/89 assay year (date letter “o”). The sponsor’s mark, AB, is that of Alfred Bedford the British principal of the Waltham Watch Co, an American company.

thankyou so much, is it possible to know how much it would be worth? thankyou