Lug-to-lug 51.2 mm 2.02 in
Case 40 mm 1.57 in
Thickness 16.4 mm 0.65 in
Lug width 22 mm 0.87 in
Wrist fit analyzer
Fit reference
Flat wrist width54.1 mmFit ratio0.95
Too smallIdealLargeToo large
Large
Likely to wear near the wrist edge; case shape and strap angle matter.
Sources
- https://www.unimaticwatches.com/wp-content/uploads/2025/11/TECH-SPECS-U3S-M.pdf
Official Unimatic technical-specification PDF lists 40 mm case diameter (41.5 mm with bezel), 51.2 mm height lug-to-lug, 16.4 mm thickness with the lens, and 22 mm lugs.
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