A few days ago, Radger posted:
which showed a rather nice compass in a PW case. Last night on ebay, I stumbled upon this:
MONACO ROULETTE IN A POCKET WATCH STYLE on eBay (end time 30-Oct-10 22:35:26 BST)
which is a bit like
and a little research found:
Rouette and other Gambling Watches, Antique Gambling Chips
so I thought I'd share.