It's a limited edition model of 50 pcs selling for a lot of money over the original retail price.
Only way to get one was if you were a serving member with the Clearance Diving branch of Royal Navy
Some are cashing them out at more than 3.5x what they sold for. Hoping that they'll remain hot and go up, but hey. Panerai could release a new LE and these will be forgotten and prices could drop
Buy the standard model and save your money if your thinking about it
If your actually Warren Buffet and worth 100 Bil. Go ahead and it's 1 mil for the advice