The short answer
- Smaller watches, roughly 34 to 39mm, are back in favour because they wear comfortably, sit under a cuff and age well stylistically.
- Lug-to-lug length and case thickness matter more than the diameter printed on the spec sheet.
- As a starting point, most wrists of 15 to 17cm suit 36 to 39mm; try before you buy wherever you can.
In this article
Smaller watches are back, and not as a passing fashion. After roughly a decade in which 42 to 46mm cases dominated, collectors and the major houses have moved toward slimmer cases in the 34 to 39mm range. The short answer to why: they are more comfortable, they slide under a shirt cuff, and they tend to look right for longer.
Why are smaller watches in fashion again?
Three forces are at work. First, taste has swung toward quieter design. A slim watch says the owner chose it carefully, which is a stronger signal than size or shine. Second, vintage collecting has trained eyes to appreciate proportions from the 1950s to the 1970s, when 34 to 36mm was normal for a man's watch. Third, the market has corrected after the excesses of the early 2020s, and buyers are picking pieces they expect to wear for decades rather than for a season.
The industry has followed. Many brands now offer their signature models in mid sizes, and some of the most talked-about recent releases are thin dress watches rather than bulky sports models.
Diameter is only one number
The case diameter printed on a spec sheet is the least useful measure of how a watch will wear. Pay attention to three others.
Lug-to-lug length. This is the distance from the tip of the top lugs to the tip of the bottom lugs. If it is longer than the flat top of your wrist, the lugs overhang and the watch looks too big, whatever its diameter.
Thickness. A watch under about 10mm thick sits close to the wrist and disappears under a cuff. Many automatic sports watches run 12 to 14mm, which is why they can feel heavy even at 39mm.
Dial and bezel. A thin bezel with a wide dial makes a watch look larger. A thick bezel, as on many dive watches, makes it look smaller. Two 38mm watches can appear quite different in size.
Which size suits your wrist?
Use this as a starting point rather than a rule.
- Wrists of 14 to 15.5cm usually suit 33 to 37mm
- Wrists of 15.5 to 17cm usually suit 36 to 39mm
- Wrists of 17 to 19cm can carry 38 to 41mm comfortably
If you are between sizes, choose the smaller one. A watch that is slightly small looks intentional; one that is slightly large looks like a mistake.
The best test is simple: a watch should sit within the edges of your wrist when you look down at it.
Where to start looking
The classics are classics for a reason. Rectangular watches such as the Cartier Tank and the Jaeger-LeCoultre Reverso wear smaller than their dimensions suggest and have been made in modest sizes for decades. In round watches, the Rolex Oyster Perpetual is offered in several sizes including 36mm, and many Grand Seiko, Nomos and Tudor models sit in the 36 to 39mm range. Independent and vintage markets are full of beautiful 34 to 36mm pieces at gentler prices.
How to try before you buy
Visit a boutique or authorised dealer and try on the size you think is too small. Most people are surprised. Wear it for ten minutes rather than glancing at it in a mirror, and check it with a long-sleeved shirt. If you are buying online, print a paper template at true scale and wrap it around your wrist, and confirm the retailer's return policy before you commit.
The bottom line
A smaller watch is not a compromise. Choose by lug-to-lug length and thickness first, diameter second, and you will end up with a watch that feels as good in ten years as it does today. If value retention matters to you as well, read our guide to whether luxury watches hold their value.
Questions readers ask
What size watch is considered small for men?
Anything below about 38mm is usually described as small or mid-size for men today, although many classic men's watches from the 1950s and 1960s measured 33 to 36mm. The label matters less than the fit: a 36mm watch with long lugs can wear larger than a 38mm watch with short, curved lugs.
Is a 36mm watch too small for a man?
No. A 36mm watch is a classic men's size and suits most wrists below roughly 18cm. It reads as considered rather than undersized, especially with a dial that runs close to the edge of the case and a strap that tapers well.
How do I measure my wrist for a watch?
Wrap a soft tape or a strip of paper around the wrist just above the wrist bone, where the watch will sit, and note the length. Then measure the flat top of your wrist from side to side; a watch's lug-to-lug length should not exceed that width.
