Signature tool
Wrist Fit — what case size fits your wrist?
Enter your wrist circumference and get a comfortable case-diameter and lug-to-lug guideline range, based on the sizing heuristics watch enthusiasts have used for years. A guideline, not a rule — personal taste and case shape matter more.
How this works
Where these ranges come from
The bands are the sizing heuristics the watch community has repeated for years: smaller wrists generally balance smaller cases, and — the harder rule — the lug-to-lug span should stay within the flat top of your wrist. They are shown as ranges on purpose. Case thickness, lug curvature, bezel width, dial colour and strap choice all change how a watch wears, which is why the result is a guideline, never a verdict.
FAQ
Wrist-size questions
What wrist size wears a 40 mm watch comfortably?
As a guideline, wrists around 16.5–18.5 cm (6.5–7.3 in) tend to balance 38–42 mm cases well — but lug-to-lug and case shape matter more than the diameter number, and plenty of people happily wear outside these bands.
Is lug-to-lug more important than case diameter?
Most enthusiasts think so. The practical rule: the lug-to-lug span should stay within the flat top of your wrist. A 44 mm case with short lugs can wear smaller than a 40 mm case with long ones.
How do I measure my wrist for a watch?
Wrap a soft tape (or a strip of paper you then measure) just below the wrist bone, snug but not tight. That circumference is the number this tool uses.