Hi 'The Dude'
Thanks for the reply. Unfortunately my O&W isn't one of the older original watches, its from the newer range towards the end of the companies watch making.
Its the Frank Muller style tonneau, the same as this one here (not my picture) http://www.electric-watches.co.uk/ot...neau%20one.jpg I have it on a good quality brown croc skin style strap with a high quality clasp and it makes a nice dress watch.
I would like one of the O&W M range divers but don't really 'need' one now I have the Seiko.

With regards to the non date sub, I found one from a dealer that's listed as trusted on another forum I came across yesterday. The dealer is TSWATCH and they have a non date ceramic listed. Do you have any knowledge of them ? Am I allowed to post a link to the site / watch ?

Regards,