Barry, thanks to your link (huge thanks!) I was able to dig a bit deeper (sorry the pun!), and WOW! Looks like it is another iteration of the Royal Marines collection, model number BN0148-54E (thus making it a special watch to you Brits!), have a look:
Steepy price like hell, though!!
$495 GBP! Ouch!
It is a simple E168 eco-drive movement, found in counterparts costing way below $200 usd!