Grand Seiko SLGB023
SLGB023 2026–present or unrecorded end
Case
direct Dimensions and fit
Case length40.8 mm
Case width / diameter40.8 mm
Case thickness12.9 mm
Lug-to-lug48.5 mm
Lug widthNot recorded
Water resistanceNot recorded
The dimension basis is not currently recorded.
Open dimension source ↗Movement
Spring DriveCalibre and mechanism
Calibre9RB1
Normalized calibre9RB1
GenerationSpring Drive Automatic
Power reserveNot recorded
Technical data
Non-automatic; winder not applicable Conventional winding
ApplicabilityRequired
DirectionBoth
TPD minimumNot recorded
TPD target650
TPD maximumNot recorded
Conventional winding fields are evidence-linked reference data. They are separate from any device-specific axial-control profile.
Open winding source ↗Market context
Date not recordedMarket-value disposition
No exact-reference public market estimate has been admitted for this record.
Market observations are separate from manufacturer specifications and are not used to fill technical gaps.