The Prime Minister model is a new Gevril with a Technotime 7529 movememnt.
I believe they are also manufactured in China. They are considered a higher end Chinese manufactured watch.
Grades of Chinese watches - Chinese Watch Industry Wiki
By the way, some of the Chinese watches are very high quality watches with lots of great features for very reasonable money.
I am currently wearing a Chinese manufactured 35 jewel German watch and it is an awesome timepiece. I have looked at that Gevril many times and consider it a very nice timepiece. Please post some pics!
John