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Watch Case Size for a 20 cm Wrist

Watch Case Size for a 20 cm Wrist — recommended case diameter, lug width and strap length.

Reviewed by the 247Sizing teamLast updated: 12 August 2026
20 cm wrist: Case 44–50 mm
20 cm (7.9 in) wrist → 44–50 mm case · Lug width 22–24 mm · Large
These are proportion guides — wear whatever suits your style. A 40 mm watch fits almost any wrist. Larger cases (44 mm+) look most balanced on wrists over 17 cm.

Recommended watch sizing:

MeasurementValue
Case diameter44–50 mm
Lug width22–24 mm
Wrist bandLarge
Strap length22 cm
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