The Grand Seiko caliber 9S51 is a Mechanical Automatic movement. It is part of the 9S family of movements and it was introduced in 1998.
| Caliber | 9S51 |
| Type | Mechanical Automatic |
| Family | 9S |
| Year | 1998 |
Grand Seiko watches with caliber 9s51
SBGR002
Case reference: 9S51-0010
Type: Mechanical Automatic
Movement: 9S51
Case material: Yellow Gold
Year: 1998
SBGR007
Case reference: 9S51-0020
Type: Mechanical Automatic
Movement: 9S51
Case material: White Gold
Year: 2000
SBGR013
Case reference: 9S51-0030
Type: Mechanical Automatic
Movement: 9S51
Case material: White Gold
Year: 2000
SBGR033
Case reference: 9S51-00A0
Type: Mechanical Automatic
Movement: 9S51
Case material: White Gold
Year: 2005