I’m sorry but this watch is not worth close to $900. You can often pick up the same watch in much better condition for quite a lot less, or spend $900 on a better one.
Some of the reasons this watch is not worth too much are:
- the watch is heavily worn with scratching on the crystal and the case
- there is a lot of patina on the dial
- I’m think the second hand is not original - it certainly looks out of place.