Seiko 7D46-0AE0 “Big Date” Kinetic PerpetualModel: Seiko 7D46 0AE0 Big Date Kinetic Perpetual Year: October 2008 Features: The Hybrid. A 7D46 Kinetic movement. Kinetic movements originally served as a hybrid pre cursor to the Grand Seikos Spring Drive movement. Just like in an automatic mechanical watch, your arm wrist movements spin a rotor that powers the watch. However, unlike a standard automatic movement, energy is stored in a capacitor. The Complication. The main complication is a leap