Caliber lookup
Movement referenceGrand Seikolong run
9R66
GS Spring Drive automatic GMT (date), variant of the 9R6x base, ~72h reserve.
- Type
- spring drive
- Jewels
- 30
- Produced
- 2005–present
- Family
- Grand Seiko 9R
Notable references
SBGE001 GMTSBGE201SBGE253
In the catalogue
0 modelsNo models with the 9R66 are in the catalogued sets yet — our extracted catalogues are mostly 1970s Japanese-domestic editions. More catalogues are being digitised.