9S MECHANICAL MOVEMENT
Caliber 9S63 offers a small seconds hand at the nine o’clock position and a power reserve indicator at three o’clock.
Manual winding mechanical
+5 to -3 seconds per day
Note: This accuracy is the result of measuring the loss/gain of the time for seventeen days before the inside movements of the watch are put in the case. The measurement has been done in the factory where temperatures or position of the movements are controlled.
Normal usage accuracy
+10 to -1 seconds per day
Approximately 72 hours
28,800 vibrations per hour (8 beats per second)
No date display, Power reserve indicator, Small seconds hand
What makes 9S Mechanical special?
The concept of Grand Seiko was born from the desire to build the world's best watch, and the collection continues to push precision in mechanical watches to the limits of timekeeping technology.
As a true manufacture, Grand Seiko incorporates the latest technology alongside its breadth of craftsmanship to raise the art of watchmaking to its peak.