Ensuring the perfect synchronization of the hands’ fly-back
The caliber 8R48, Automatic Chronograph has 311 components including the vertical clutch that is at the heart of all true chronographs, the column wheel that provides superior durability and operability, and the “three-pointed hammer” which is Seiko’s own stopwatch return-to-zero mechanism.
Center Power Reserve Indicator
The unconventional dial with a center power reserve indicator
A power reserve indicator in the center of the dial, as well as a date indication at the 6 o’clock position.