Selling advice needed

Hi everyone, sorry for being the one post wonder. I am having to sell my Omega Seamaster Planet Ocean, bought in London about 4 years ago and complete with box and papers. I was in an Omega shop at the Bullring, Birmingham a couple of months back and the salesgirl offered to buy it as 'that model is not made anymore'. I am no expert but could somebody please shed some light on this? Should I be asking for a particular price?

Thanks in advance for any advice, I am no Omega aficionado - just gutted at needing to raise some funds.

Regards

Nigel

For some reason I can't get the photo to load...

Watch comes with orange leather strap, only worn for special occasions.

Thanks.