9R66
Spring Drive
Introduced in 2006, Caliber 9R66 is an automatic Spring Drive movement featuring a GMT function. Like other 9R movements, it utilizes a mainspring-driven gear train and a rotor-generated electrical charge for quartz-regulated precision, showcasing the brand’s mastery of hybrid watch technology.
Caliber Details
- Manufacturer
- Grand Seiko
- Base Movement
- Grand Seiko 9R65
- Type
- Spring Drive
- Power Reserve
- 72 h
- Jewels
- 30
- Display
- Analog
- Hands
- Hours, Minutes, Seconds, Additional 24 Hour Hand (adjustable)
