How to Use the Fit Tool
Our specialized Sports Watch Fit Tool focuses on the most critical dimension for fit: Lug-to-Lug (L2L) distance. Follow these steps to accurate results.
1. Select Watch or Custom
Search for your watch model. If it's not in our database, you can add custom dimensions manually to check the fit.
2. Measure Width
Measure the flat width of your wrist across the top. Do not use circumference. This is the landing strip your watch sits on.
3. Check Ratio
We calculate the ratio of the watch's length to your wrist width. Ideally, you want the watch to occupy 70-95% of your wrist width.
4. Review Zone
See which zone you fall into. Bold (95-100%) means maximum presence. Overhang (>100%) means the lugs extend past your wrist.
Watch Size Guide
Finding the perfect watch fit goes beyond just the case diameter. Understanding these three key dimensions will help you predict how any watch will sit on your wrist.
Width
The case diameter excluding crown and pushers. For rectangular watches, this measures the horizontal width from 9 to 3 o'clock.
Height (Lug-to-Lug)
The vertical distance from lug tip to lug tip. Critical for comfort - ensure this measurement is smaller than your wrist width to avoid overhang.
Thickness
The profile depth from caseback to crystal. Thinner watches (<10mm) slide under cuffs, while thicker ones (13mm+) offer more wrist presence.
Strap Sizing Guide
A watch fits best when the strap is the right length. Unlike case size (aesthetic), strap length is about physical comfort and security.
Width vs. Length
Lug Width (A): The distance between the horns of the watch. This determines if the strap physically attaches (e.g., 20mm, 22mm).
Strap Length (B): The combined length of the two strap pieces (e.g., 120/80mm). This determines if it fits around your wrist.
Measure Your Wrist
Use a soft measuring tape or a string. Wrap it comfortably around your wrist bone. If using string, measure the length against a ruler.
Pro Tip: Measure at the point where you wear your watch usually just above the wrist bone.
Strap Length Calculator
Standard industry size. Most stock straps will fit you perfectly on the middle holes.
Note: This guide assumes a standard watch case size (~40-42mm). Very large watches (47mm+) effectively add length, so you might need a shorter strap.
Frequently Asked Questions
Everything you need to know about watch sizing and our comparison tools.
Why does lug-to-lug matter?
Case diameter tells you how wide the watch is, but lug-to-lug (the vertical distance between the strap attachments) determines whether the watch overhangs your wrist. This is often the most critical dimension for real-world comfort. Use our Wrist Fit tool to input your wrist width and see for yourself.
Does watch thickness matter for comfort?
Yes. Thicker watches feel taller and heavier and may catch on sleeves. Slim watches tend to wear smaller and more comfortably, especially on narrow wrists.
Can strap type change how a watch fits?
Absolutely. Metal bracelets add weight and structure, while leather, rubber, or fabric straps flex and can make a watch feel smaller. Strap width and taper also influence overall balance on the wrist.
Built by Gytis Puidokas
Full-stack developer and smartwatch enthusiast. That's me in the photo, personally validating the "Overhang" algorithm. If the lugs hang off my wrist, they'll hang off yours too.