Size guide
Will it fit? Look at lug to lug, not case size.
Case diameter gets all the attention, but what decides fit is lug to lug: the distance from the tip of the top lugs to the tip of the bottom ones. If it’s longer than the flat top of your wrist, the lugs hang over the edge and the watch looks too big, whatever its diameter.
Fits well.
How to measure your wrist
- Wrap a strip of paper or a soft tape around your wrist, just above the wrist bone, where a watch sits.
- Mark where it overlaps, lay it flat and measure. That’s your circumference.
- For extra accuracy, measure the flat top of your wrist edge to edge as well. Wrists with the same circumference can be flatter or rounder.
Our rule of thumb
The flat top of a wrist is roughly 29% of its circumference. A watch fits well when its lug to lug takes up about 75–95% of that width. Past 100%, the lugs overhang.
| Wrist | Flat top (approx.) | Comfortable lug to lug | Typical case size |
|---|---|---|---|
| 6 in (15.2 cm) | 44 mm | up to 42 mm | 34–38 mm |
| 6.5 in (16.5 cm) | 48 mm | up to 45 mm | 36–39 mm |
| 7 in (17.8 cm) | 52 mm | up to 49 mm | 38–41 mm |
| 7.5 in (19.1 cm) | 55 mm | up to 53 mm | 40–43 mm |
| 8 in (20.3 cm) | 59 mm | up to 56 mm | 41–44 mm |
Our 29% estimate lines up with the lug-to-lug ceilings published by lug2lug.org (about 47 mm at 6.5 in, 49–50 mm at 7 in). Like Dial & Lume, we’d say: if you can, measure the flat of your wrist directly.
Thickness
Under about 12 mm slides under a shirt cuff. Between 12 and 14 mm it starts to catch on slim cuffs, and past 14 mm it’s a statement. Every listing shows thickness on the crown-side photo.
Set it once
Use Your wrist at the top of any page. Every watch card then shows whether it fits, and the shop can filter to watches that do. It’s saved on your device only.