Actually is not a bad idea. I will ask him and see what he has to say. what I am doing is turning his 1655 into a 1675, some guys have done that already here, there is no accurate base for a 1675 other than going from 1655 to 1675. I have a gen dial and the watch I purchased from Josh has an asian movement not very realiable but for 140 dollars what esle can I expect. If I use a true GMT movement the watch build will get close to $900 which is not that expensive considering that for $3000 i can get a decent Gen 1675.
Ivan