Lug-to-lug 46.5 mm 1.83 in
Case 39 mm 1.54 in
Thickness 12.3 mm 0.48 in
Lug width 20 mm 0.79 in
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.86
Too smallIdealLargeToo large
Balanced
Likely to sit comfortably within the wrist width for most wearers.
Sources
- https://serica-watches.com/en/products/8315-1-travel-chronometer
Official Serica product page identifies Ref. 8315-1 GMT and lists 39 mm diameter, 46.50 mm lug-to-lug, 12.30 mm thickness, and 20 mm lug width.
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