Lug-to-lug 45.5 mm 1.79 in
Case 38.5 mm 1.52 in
Thickness 11 mm 0.43 in
Lug width 20 mm 0.79 in
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.84
Too smallIdealLargeToo large
Balanced
Likely to sit comfortably within the wrist width for most wearers.
Sources
- https://www.sinn.de/out/media/productpdf/SINN_556-I-RS_EN_P.pdf
Manufacturer product sheet confirms 38.5 mm case, 11 mm thickness, and 20 mm band lug width for the 556 case.
- https://www.watchbuys.com/store/pc/Sinn-556-I-RS-on-Strap-p4908.htm
Authorized distributor lists 38.5 mm diameter, 11.0 mm height, 20 mm lug width, and 45.5 mm lug-to-lug.
- https://watch.the1916company.com/videos/sinn-556-i-556-010
Reviewer measurement agrees at 38.5 mm diameter, 11.1 mm thickness, and 45.5 mm lug-to-lug.
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