Just to update this thread, I ended up going with the Version 1, Gen 2. Really pleased with it, doesn't wear as big as I expected and the strap was better than I'd expected too. I did however order an aftermarket strap. There's a guy on eBay that makes them to order, wide variety of colours and styles etc you just give him your lug width and wrist size.
This is what I got for the OB. Very good quality, he also gives the option of strap end (straight, curved or slanted) I went for slanted as you can see. Was only £16. I'm unsure whether I'll keep it on the OB as its probably not refined enough for what is basically a dress watch (quite chunky). But it's a good strap to have and I'll be using the guy again.
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