AUTOMATIC SPRING DRIVE 3-DAY CHRONOGRAPH GMT
Caliber 9R96 is a version of Caliber 9R86 specially adjusted to deliver an even higher level of precision. Caliber 9R86 delivers a precision rate of ±15 seconds per month (equivalent to ±1 second per day), whereas Caliber 9R96 delivers ±10 seconds per month (equivalent to ±0.5 second per day).
The difference between the two movements lies in the choice and testing of the quartz crystal oscillator. While all 9R Spring Drive movements use a quartz crystal oscillator in the regulator, only oscillators which exhibit particularly excellent performance are selected for use in Caliber 9R96.
The Spring Drive Chronograph may well be the world's most accurate spring-driven chronograph. It measures elapsed time not to the nearest fraction of a second but exactly, thanks to the fact that the glide motion hands stop at the very instant that the button is pressed. The 72 hour power reserve is maintained even if the chronograph is in operation.
The Grand Seiko lion in 18K gold graces the oscillating weight to symbolize the enhanced accuracy.
|Winding mechanism||Automatic with manual winding|
|Accuracy||±0.5 second per day (±10 seconds per month)|
|Power reserve||Approximately 72 hours|
|Number of jewels||50 jewels|
|Features||-Power reserve indicator
-Dual time function with 24-hour hand
-Quick correction function of time difference adjusting to a calendar
Caliber 9R96 Models
9R Spring Drive 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 Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.