Had it a few days now so I thought I'd add a review of my experience so far.
The strap was too long so needed 2 links removed. I called Laings in Cardiff and booked in to have this done on Saturday 4th Jan. Greeted with a cup of tea, the job was carried out perfectly and there was no charge as long as I left them a positive review on Google, which I was happy to do.
Now to the watch.
Lovely on the wrist, I am amazed that the lume lasts until dawn, it keeps great time and several people have commented on it, it's certainly a keeper! Keep your eyes open on the web, I managed to save £2200 off list price, I'm sure there will be other deals around. I've bought a rubber strap for it although haven't fitted it yet. I didn't buy a genuine strap as £540 for strap and clasp just seemed excessive to me, but aside from the Omega on the clasp it's almost identical to the genuine one.
Now to save for a Seamaster!