Sizing

Your wrist, your watch

A case that fits sits between the two bones of your wrist without overhanging. Measure once, and every ODYSS page tells you what suits you.

How to measure: wrap a strip of paper or a tape just above the wrist bone, snug but not tight, then read the length in centimetres.

Your wrist
cm
Case size that suits you 40 – 44 mm
Strap length Standard

Most ODYSS automatics land in this range.

See watches that fit

Actual size

See the diameter, for real

Hold a bank card against the screen and stretch the outline until the two match. Every case below is then shown at its true size.

Step 1 — match a bank card
85.6 mm

Any credit or debit card works — they are all the same size. 3.78 px / mm

36 mm case diameter
38 mm case diameter
40 mm case diameter
42 mm case diameter
44 mm case diameter
46 mm case diameter

Measure your wrist in the tool above and the size that suits you is highlighted here.

Browse the collection

Diameter is only half the story: the lug-to-lug length decides whether a case overhangs your wrist. As a rule, keep it under the flat width of your wrist.

Strap and fit

The strap decides the fit

A case can be right and the watch still sit badly. Two numbers matter: the width between the lugs, and the length of the strap once buckled.

Where the buckle lands Wrist not measured yet

Our standard straps buckle comfortably on wrists from 15.0 to 21.0 cm.

01

Lug width

The gap between the two horns where the strap slots in, measured in millimetres — 20 and 22 mm are the common ones. It has nothing to do with your wrist: it is fixed by the case, and it is the number you need when you buy a replacement strap.

Measure the gap, not the strap itself, with the strap removed.
02

Strap length

Two pieces: the short side that holds the buckle and the long side with the holes. A standard set fits most wrists. If you sit at either end of the scale, say so when you order — we check before dispatch rather than after.

Aim for the buckle on the middle hole, leaving room either way.
03

Steel bracelets

A bracelet is sized by removing links, not by a hole. It arrives long on purpose. Any watchmaker adjusts it in a few minutes, often while you wait, and the removed links stay yours in case you ever need them back.

Keep the links: a resized bracelet is hard to extend without them.

Unsure between two sizes? Tell us your wrist measurement when you order and we check the strap before it leaves.

Ask us first
I have no tape measure, what do I use?

A strip of paper and a ruler. Wrap the paper just above the wrist bone, mark where it meets, lay it flat and read the length. A piece of string works the same way.

How tight should a watch sit?

It should slide about a centimetre along your wrist and stop at the bone. Tight enough not to spin on its own, loose enough to slip a fingertip underneath.

I am between two sizes, up or down?

Go down. An oversized case sits on the wrist bones and rocks; a slightly small one simply reads as classic. On a 30-day return window the risk is low either way.

Does the thickness matter as much as the diameter?

It matters for comfort more than looks. A thick automatic catches on a shirt cuff — if you wear one daily, that is the number to watch, not the diameter.

Can I change the strap myself?

Yes, with a spring bar tool and five minutes. Order the strap in the lug width of your watch, never in your wrist size, and keep the original bars.

Is 42 mm too big for a 16 cm wrist?

Not automatically. It will read as a statement rather than a discreet watch. If you want it to disappear under a cuff, stay at 40 mm or under.

Do you size differently for women?

No. A wrist is a wrist — we size by measurement, not by who is wearing the watch. Smaller cases simply suit smaller wrists, whoever they belong to.

What if it does not fit when it arrives?

You have 30 days. Send it back unworn in its box and we refund the original payment method — or tell us your measurement and we help you pick the right one instead.

Ready when you are

Browse the collection with your size in mind.

See the watches