Watch Strap Sizing Guide
About Strap Width
The strap width (lug width) is usually measured in millimeters (mm).
Watches come in different sizes. To determine the appropriate strap width for your watch, you will need to measure the lug width of your watch. This can be done with a ruler or a Vernier caliper.
The width of a two-piece watch strap is expressed in two numbers. For example, 20/18 – the first number 20mm is the width of the strap between the lugs of your watch, and the second number 18mm is the width of the strap at the buckle. A straight watch strap e.g. 20/20 has the same width at the lugs and the buckle, whereas a tapered watch strap e.g., 20/18 has a wider width at the lugs and a narrower width at the buckle.
About Strap Length
The strap length width is usually measured in millimeters (mm).
The length of a two-piece watch strap is expressed in two numbers. For example, strap length 120/70. The first number 120mm is the length of the tail side of the strap, and the second number 70mm is the length of the buckle side of the strap.
(Strap width = Lug Width)
What Length Should I get?
First, you need to know your wrist size. Measure your wrist size with a measuring tape, or you can use a plain strip of paper, wrap it around your wrist where you usually wear your watch, and make a mark. Next, lay the strip flat and measure the distance between the starting point and the mark on the strip. This will be your wrist size.
Once you have your wrist measurement, refer to our length suggestions to find the correct strap size.
| SIZE | LENGTH | WRIST |
|---|---|---|
| X-Small | 110/65 | 5.90" to 6.30" (150mm to 160mm) |
| Small | 120/70 | 6.30" to 6.70" (160mm to 170mm) |
| Medium | 125/75 | 6.70" to 7.10" (170mm to 180mm) |
| Large | 130/80 | 7.10" to 7.50" (180mm to 190mm) |
| X-Large | 135/85 | 7.50" to 8.00" (190mm to 200mm) |
If you are on the cusp between two sizes, you may select the smaller size for a shorter tail, or larger size for a longer tail, depending on your preference. For example, if your wrist size is 180mm, medium 125/75 length would be just right. However, you may choose large 130/80 if you prefer a longer tail or a looser fit.
Kindly note that the measurements may vary slightly, depending on the case size and the shape of your watch. Should you need any assistance, please don’t hesitate to contact us.
Choosing Strap Thickness
Generally, a ±3.0mm watch strap should go well with most normal sized watches, while a ±4.0mm strap is suitable for Panerai and other large robust watches. This is just a suggestion. Ultimately, it still depends on personal preference when it comes to choosing the thickness of a strap.
Single Pass Strap Length
Strap length 285mm (11", measurement does not include the buckle). It will fit wrist size up to approximately 195mm (7.70") with enough excess strap tail to fold back into the leather keeper.
Strap length 285mm (11", measurement does not include the buckle). It will fit wrist size up to approximately 195mm (7.70") with enough excess strap tail to fold back into the ring keepers.
Strap length 285mm (11", measurement does not include the buckle). It will fit wrist size up to approximately 195mm (7.70") with enough excess strap tail to fold back into the ring keepers.
Printable Wrist Sizer
Need a sizer to estimate your wrist size?
- You can download our printable wrist sizer.
Printable Measuring Gauge
Need a ruler to find out your lug width?
- You can download our printable measuring gauge and ruler.