Manufactured by the Micro Artist Studio Slim model with manual winding Spring Drive movement
SBGZ003
Lug-to-lug 43.7 mm 1.72 in
Case 38.5 mm 1.52 in
Thickness 9.8 mm 0.39 in
Lug width 19 mm 0.75 in
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.81
Too smallIdealLargeToo large
Compact
Likely to wear short across the wrist, with visible margin near both edges.
Sources
- https://www.grand-seiko.com/us-en/collections/sbgz003j
Manufacturer page: 38.5 mm diameter, 43.7 mm lug-to-lug, 9.8 mm thickness, and 19 mm band width.
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