Guide · sizing
Stop buying by case width
Lug-to-lug decides whether a watch sits flat. Case width only decides how it photographs. Here is how to measure, and what fits.
Step 01
Measure the wrist
A strip of paper around the wrist bone, marked at the overlap, held against a ruler. Do it at the end of the day and keep it snug rather than tight.
Step 02
Find your lug-to-lug ceiling
Your wrist width in millimetres is roughly your maximum lug-to-lug. Go beyond it and the lugs hang over the edge.
Step 03
Then pick the face
Within your ceiling, case width is taste. A 38 on a broad wrist reads deliberate, not small.
What fits what
WristCaseLug to lugReferences
Under 16.0cm
43mm
44mm
Daydream Ivory, Daydream Onyx
16.0–17.0cm
43mm
44–46mm
The full Daydream family, smaller Odyssey
17.0–18.5cm
40–43mm
46–48mm
Almost everything — pick on dial rather than size
Over 18.5cm
43mm
48mm
Eternal Amethyst, Azure Eternity, Golden Legacy
Still not sure?
The finder asks five questions including wrist size, and returns a specific reference rather than a size range.