Size guides
Watch size
A watch’s size is the width of its case, not counting the crown. As a rough guide:
| Wrist | Case size that sits well |
|---|---|
| Under 15 cm | 26 to 36 mm |
| 15 to 17 cm | 34 to 40 mm |
| 17 to 19 cm | 38 to 44 mm |
| Over 19 cm | 42 mm and up |
Each watch’s page shows its case size, thickness and strap width, and draws the watch to scale.
Ring size
Our rings come in US sizes 5 to 10, and some are adjustable.
| US size | Inside diameter | Inside circumference |
|---|---|---|
| 5 | 15.7 mm | 49.3 mm |
| 6 | 16.5 mm | 51.9 mm |
| 7 | 17.3 mm | 54.4 mm |
| 8 | 18.1 mm | 57.0 mm |
| 9 | 18.9 mm | 59.5 mm |
| 10 | 19.8 mm | 62.1 mm |
Measure a ring that fits
Measure the inside of the ring from edge to edge, and find the closest diameter above.
Measure your finger
- Wrap a thin strip of paper around the base of your finger.
- Mark where it overlaps, then measure the length in millimeters.
- Find the closest circumference above. If you’re between two sizes, take the larger one.
Bracelets and necklaces
Each piece’s page gives its length, with the extender where there is one: a 40 cm + 5 cm necklace can be worn anywhere from 40 to 45 cm.