Rolex sizes guide: case sizes by model and how to pick yours

Size changes how a Rolex wears more than any other choice, and it is the one you can't fix after buying. A wrong metal or dial is a matter of taste. A case that overhangs your wrist will feel wrong every day. This guide lists the case sizes of every current Rolex model, gives a starting range for your wrist, and explains what to check beyond the number on the spec sheet.

Current Rolex case sizes by model

These are the case diameters our catalog records for models in production. Older references in the same collections were often smaller: many vintage and discontinued sport models measure 40 mm or less.

Two things stand out. Most of the range sits between 36 mm and 41 mm. And several models come in more than one size, so you can often choose the watch first and the size second: the Oyster Perpetual runs from 28 mm to 41 mm, and the Datejust from 28 mm (as the Lady-Datejust) to 41 mm.

Measure your wrist

Wrap a soft tape measure, or a strip of paper you then lay against a ruler, around your wrist where you wear a watch, usually just above the wrist bone. Note the circumference in centimeters. Also look at your wrist from above: a flat, wide wrist carries a larger watch than a round wrist with the same circumference.

A starting range for your wrist

The watch site Wristler publishes this table of case diameters by wrist size, split by style. Treat it as a starting point; the try-on decides.

Wristler notes that the table applies mainly to round watches, and that if the lugs extend beyond the sides of your wrist, the watch is usually too large in practice.

Here is the same table read against Rolex's sizes. This mapping is ours, using the case sizes above:

Smaller cases, from 28 mm to 31 mm, sit below the table's ranges. They are worn by people of every wrist size who like a small watch, and our women's Rolex page lists them.

Sizes change between generations

If you are buying pre-owned, check the size of the exact reference, not the model. Several models have changed size from one generation to the next, according to our catalog:

The Explorer is the clearest example: it grew to 39 mm and then returned to 36 mm, with a 40 mm version added alongside. A listing that says "Explorer" can mean any of these sizes.

Why diameter is not the whole story

Two Rolex watches with the same stated diameter can wear very differently.

• Lug-to-lug length. The lugs, which Rolex describes as carved from the same block as the middle case, set how far the watch reaches across your wrist. A long lug-to-lug can overhang a smaller wrist even at 36 mm. Lug-to-lug length is not part of the stated case size, so measure it or ask the seller.
• Bezel. A wide rotating bezel, as on a Submariner, frames a smaller dial opening than a thin fluted bezel does on a Datejust of similar size, so the two can look different sizes on the wrist. Try both styles.
• Thickness. Deep-diving models are thicker. Our catalog sources give the earlier Deepsea 116660 as 44 mm across and 17.7 mm thick, and the 50 mm Deepsea Challenge is larger still. A thick case sits higher on the wrist and can catch on cuffs.
• Bracelet. A Jubilee drapes more closely than an Oyster, and a bracelet sized one link too long makes any watch look bigger. Rolex's Easylink adds about 5 mm under the clasp, and Glidelock on dive watches adjusts in small steps, which helps get the fit right. Our Jubilee vs Oyster guide compares the two.

Size across our men's and women's pages

Our men's Rolex page lists references of 39 mm and larger, and our women's page lists references of 34 mm or smaller plus every Lady-Datejust. Those are page scopes, not rules about who should wear what: 36 mm sits between them on purpose, and plenty of people choose a watch from either list.

Compare sizes and prices in one model

The Oyster Perpetual is the easiest way to compare sizes, because the watch is otherwise the same. These are the current sizes with a published range on our data:

Size is not neutral for price. Compare the ranges above before you assume a smaller or larger size costs less, and check how many sales stand behind each range.

Read the confidence column as well. A size with a low-confidence range has fewer recorded sales behind it, so its figure can move further when new results arrive, and two sizes whose ranges overlap may not differ in price at all.

How to try on and decide

• Try at least three sizes: the one you think you want, one smaller and one larger.
• Look at the watch in a mirror from a few steps away, not only from above.
• Check that the lugs end within the top of your wrist.
• Have the bracelet sized properly before you judge comfort.
• Wear it for a few minutes; weight and thickness show up after the first impression.
• If buying online, ask the seller for the lug-to-lug measurement and a photo on a wrist with a known size.