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Watch Size by Wrist: A Chart for Every Wrist

Find your wrist in the first table and read across. The tables below it adjust the range for case style, cover women's sizing and strap length, and place well known watches on the chart.

By Michael Chen

Watch 101 and Brands Editor

October 9, 2026·4 min read

Prices checked October 9, 2026Compared across brandsHow we choose

A coiled tailor's measuring tape on a yellow background
Measure first, then choose a size

These charts are starting points, built from the proportions that look balanced on most wrists of each size. They assume you know your wrist circumference, measured just above the wrist bone. If you have not measured yet, or want the reasoning behind the numbers, read how to choose the right watch size first; this page is the quick reference.

Two columns matter in every table. Case diameter is the width across the case without the crown. Lug to lug is the length from tip to tip of the lugs, and it is the hard limit: if it is longer than the flat top of your wrist, the watch overhangs regardless of its diameter.

Chart 1: Round watches by wrist size

For a round, three hand sports or everyday watch with ordinary lugs.

Wrist (inches)Wrist (cm)Case diameterLug to lug, up to aboutLug width
5.514.032 to 36mm42mm16 to 18mm
6.015.234 to 38mm44mm18mm
6.516.536 to 40mm46mm18 to 20mm
7.017.838 to 42mm48mm20mm
7.519.140 to 44mm50mm20 to 22mm
8.020.342 to 46mm52mm22mm
8.5 and up21.6 and up44 to 48mm54mm22 to 24mm

Ranges are guidance. A flat, wide wrist can go one step up; a round, narrow one may prefer one step down.

Price tracker · prices checked October 9, 2026

Price history: Tyla

What one watch has cost over time, listed and per watch while the store ran its offer.

Chart 2: Adjust for the style of watch

Take your range from Chart 1, then shift it by the amount below. Shapes that fill more of the wrist, and styles meant to be discreet, move down; tool watches with wide bezels can move up.

StyleAdjustmentWhy
Dress watch, thin bezelSubtract 2 to 3mmLarge white dials look bigger, and dress watches should slip under a cuff
Everyday three handAs chartedThe baseline for Chart 1
Integrated bracelet sports watchSubtract about 2mmCase and bracelet read as one wide shape
Octagonal or cushion caseSubtract 1 to 2mmThe corners fill space a round case leaves empty
ChronographAdd up to 2mmSubdials need room; small chronographs look crowded
Dive style with rotating bezelAdd 1 to 2mmThe bezel eats into the dial, so it reads smaller
Pilot styleAdd up to 2mmLarge legible dials are the point of the style

Example: a 6.5 inch wrist takes 36 to 40mm from Chart 1. For a dress watch that becomes roughly 34 to 38mm; for a dive style watch, 37 to 42mm.

Chart 3: Square and rectangular cases

Rectangular watches are listed as width by length, and it is the length, measured along the arm, that has to fit the wrist. Square cases wear about two sizes larger than their width suggests.

Wrist (inches)Square case widthRectangular case (width by length)
5.5 to 6.020 to 28mmabout 20 by 28mm to 24 by 32mm
6.0 to 6.526 to 33mmabout 24 by 32mm to 27 by 36mm
6.5 to 7.030 to 36mmabout 27 by 36mm to 30 by 40mm
7.0 to 7.533 to 38mmabout 30 by 40mm to 33 by 44mm
7.5 and up36 to 42mmabout 33 by 44mm and larger

Chart 4: Women's watches by wrist size

Traditional women's sizing runs smaller, and jewelry style watches smaller still. Many women wear the men's ranges in Chart 1, especially for sports and integrated bracelet designs; this table follows the classic conventions.

Wrist (inches)Wrist (cm)Dainty or jewelry styleClassic women'sBoyfriend or unisex look
5.012.716 to 22mm24 to 28mm32 to 34mm
5.514.018 to 24mm26 to 30mm33 to 36mm
6.015.220 to 26mm28 to 32mm35 to 38mm
6.516.522 to 28mm30 to 34mm36 to 40mm
7.0 and up17.8 and up24 to 30mm32 to 36mm38 to 42mm

Small round or oval dials on fine bracelets, such as the Lucky Fours Tyla on its thin gold mesh, sit in the dainty column. For picks in that size class, see small watches for women and slim wrists.

Chart 5: Where well known watches sit

Case diameters as listed by each brand, mapped to the wrist range where Chart 1 or Chart 4 places them. Use a watch you can try on in a store as a reference point for one you cannot.

WatchCase*Price*Fits wrists of about
Citizen Corso27mm$3405.0 to 6.0 in (women's classic)
Seiko Essentials30mm$2655.5 to 6.5 in (women's classic)
Tissot PRX 35mm35mm$5755.5 to 6.5 in
Casio MTP1302D Dress Watch38.5mm$89.956.0 to 7.0 in
Timex Q Continental 39mm39mm$1796.0 to 7.0 in
Tissot PRX 40mm40mm$4506.5 to 7.5 in
Seiko 5 Sports42.5mm$3507.0 to 8.0 in
Citizen Promaster Dive Chronograph45mm$4407.5 in and up

*as listed on each brand's US website, October 2026

Chart 6: Strap and bracelet length

A watch can be the right size and still fit badly if the band is wrong. Two piece straps are usually sold in three lengths, given as the long side and short side in millimeters.

Wrist (inches)Strap lengthTypical sizing (long by short side)
5.5 to 6.5Shortabout 110 by 70mm
6.5 to 7.5Regularabout 120 by 75mm
7.5 to 8.5Longabout 130 by 80mm

Steel bracelets usually arrive long and are shortened by removing links, ideally the same number from each side of the clasp so the case stays centered. Our step by step guide to adjusting a watch bracelet covers the tools. If you are buying for someone else and cannot measure, the sizing advice in how to give a watch as a gift helps you choose a safe middle size.

Reading the chart sensibly

Frequently Asked Questions

What size watch for a 7 inch wrist?

A 7 inch (17.8 cm) wrist usually suits a round sports watch of about 38 to 42mm, with a lug to lug of up to roughly 48mm. Dress watches look best at the lower end of that range.

What size watch for a 6 inch wrist?

Around 34 to 38mm for a men's style round watch, or roughly 26 to 32mm for a women's style watch, with a lug to lug under about 44mm.

How do I measure my wrist without a tape measure?

Wrap a strip of paper or a piece of string around the wrist just above the wrist bone, mark the overlap and measure it flat with a ruler. Our guide on how to choose watch size also explains how to measure the flat top of the wrist.

Are these charts the same for men and women?

The wrist is the wrist, but conventions differ: women's watches are traditionally smaller, so we give a separate table. Plenty of women wear the men's ranges and vice versa; use whichever look you prefer.

About the Author

Michael Chen

Michael Chen covers automatic watches, watch brands and Watch 101 for WatchesUnder: how movements work, how to size and care for a watch, and how the affordable brands compare. Prices in his guides are checked against each brand's own website.

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