Hi-Beat 36000 80 Hours
After the wide acclaim given over many years to the Caliber 9S series of mechanical movements, it had long been Grand Seiko’s goal to push the boundaries back further and create a new mechanical movement with enhanced performance, just as the first 9S movement had done two decades before. The decision was taken to aim for a new 10-beat movement that would offer a greatly increased power reserve. This is how Caliber 9SA5 was born.
|Winding mechanism||Automatic with manual winding|
|Mean daily rate*1||+5 to -3 seconds per day|
|Normal usage accuracy||+8 to -1 seconds per day|
|Power reserve||Approximately 80 hours|
|Vibrations||36,000 vibrations per hour (10 beats per second)|
|Number of jewels||47 jewels|
|Features||-Dual Impulse Escapement
-Instant date change mechanism
- Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
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 combines the latest technology with hand craftsmanship to raise the art of mechanical watchmaking to the highest possible level.
Caliber 9SA5 Models
9S Mechanical Movement
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.