The third knob is a helium release valve. It's also a good piece of irrelevant gear to have people ask what it's for (apart from those of us who due saturation diving). I think I'll tell people it adjusts the flux capacitor. I wondered about the "Pre-order Early June " and "Availability: Out of stock." at the CW website where I purchased, I think this means I'll be waiting until June to take delivery. CW website seemed willing to take my money so we will see...Looks like that model is a limited edition, originally sold from their site for a little over $1k (currently says out of stock). I did a quick search for it to see it bigger myself, and this is the largest shot I saw. Would love to see some wrist shots for it.
I buy ALL my watches online. I'm careful to pick websites that have a no fault return policy. Being 3000 miles from anywhere make it difficult to look and touch before buying and so I've become a careful online shopper. Many boutique manufactories offer direct sales online RGM, Lum-Tec and CW to name just a few. I have also bought from the bay, worlds largest grey market.If I ever start buying watches online I'm in deep trouble.
Nice buy there uglyone4u.