Exact reference

Grand Seiko SBGJ271

SBGJ271 2023–present or unrecorded end
Case

Dimensions and fit

direct
Case length39.5 mm
Case width / diameter39.5 mm
Case thickness14.1 mm
Lug-to-lug46.9 mm
Lug widthNot recorded
Water resistanceNot recorded

The dimension basis is not currently recorded.

Open dimension source ↗
Movement

Calibre and mechanism

Automatic
Calibre9S86
Normalized calibre9S86
GenerationHi-Beat Automatic
Power reserveNot recorded
Open movement source ↗
Technical data

Conventional winding

Linked to sourced calibre programme
ApplicabilityRequired
DirectionBoth
TPD minimum650
TPD target650
TPD maximum650

Conventional winding fields are evidence-linked reference data. They are separate from any device-specific axial-control profile.

Open winding source ↗
Market context

Market-value disposition

Date not recorded

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.