Lug-to-lug 48.5 mm 1.91 in
Case 40.2 mm 1.58 in
Thickness 12.8 mm 0.50 in
Lug width 19 mm 0.75 in
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.90
Too smallIdealLargeToo large
Balanced
Likely to sit comfortably within the wrist width for most wearers.
Sources
- https://www.grand-seiko.com/us-en/collections/sbga407g
Manufacturer page: 40.2 mm diameter, 48.5 mm lug-to-lug, 12.8 mm thickness, and 19 mm band width.
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