Seiko Premier Kinetic Retrograde Day Indicator SRN039P2 Men's Watch
The Kinetic Premier is a motion-powered watch and this model is the one presented at the Baselworld 2013. The 5M84 caliber adds new functionality to the Kinetic technology and that’s extending the power reserve to six months. From a dead stop, it needs two to three jerks to start ticking again. It’s a new IC that does the power-managing trick more efficiently, so that supports the retrograde day indicator mechanism.