I think that the MBII would be a good option as well although depending on your requirements the Alt1-C might be another option. The Alt1-P2 Jet is a great watch but I think it's 'marmite' in terms of what it looks like on your wrist. It wouldn't suit me but others love it.
It's a really nice watch and the 321 calibre is lovely. I'm more of a fan of the sapphire crystal than the hesalite. I understand why the hesalite was used for outer space but on planet earth, the sapphire crystal is a far better option than plastic.