Premier line is Seiko`s high end line,positioned below Spring Drive,Grand Seiko and Credor.These watches are known for they remarkable finish and solid and robust movements.I own this wonderful Kinetic Perpetual model for one year and all I can say is - fantastic, without a doubt best value for the money!
Here are few links that can help you,first is for my review of Premier Kinetic Perpetual, and second is for Seiko`s movements:
http://www.rolexforums.com/showthread.php?t=34050
http://caliber.seikowatches.com/
Enjoy!