They're both great, but you can't order the Mark XVII at the moment. Tried the same a few weeks ago and had to switch to the XVIII.
the massakretor Check back on that V7F with your TD. I got the choice to order it with an Asian 2892 which is significantly cheaper, around $420 if I remember correctly (on steel bracelet). I don't believe that Swiss movement story anyway.
Oh I will check if that's possible. 420$ is still on the higher end, but definitely more in the realm of decency. What TD did you use, if I may ask? Usually I deal with Hontwatch