20mm Watch Straps

20mm is the most common lug width in watchmaking, so naturally it's our biggest collection, with over 1300 straps to choose from. Materials include leather, vegan leather, rubber, nylon, canvas, sailcloth and stainless steel, in classic black, brown and grey as well as brighter blues, greens, reds, oranges and whites. Brands include Hirsch, Erika's Originals, Morellato, RIOS1931 and our own Watch Obsession range.

Order before 3pm, Monday to Friday, and we'll dispatch it the same working day. UK delivery is free on orders over £100, and returns are quick and easy. And you'll find the full spec on every product page, with information on the material, lining, thickness, water resistance, warranty and fitting.

Whatever your watch, whatever your style, your perfect 20mm strap is here.

20mm Leather Watch Straps in Various Hides

We stock a huge range of 20mm leather watch straps made from traditional and exotic hides, with a choice of grains, textures and finishes. Options include:

• Smooth, grained, vintage and embossed calfskin
• Genuine alligator and crocodile with natural scale patterns
• Buffalo leather with a deeper, more pronounced grain
• Ostrich, sharkskin, lizard and sheepskin if you want something less common
• Alligator-embossed and crocodile-embossed leather at more accessible prices

Construction matters too. Padded straps have a fuller profile, while flat designs sit closer to the wrist and suit slimmer watches. Tonal stitching gives a cleaner finish, contrasting thread looks sportier, and many designs are lined with soft leather or sheepskin.

Nylon & Rubber 20mm Straps

Nylon 20mm watch straps are light, comfortable and easy to swap. Plain, striped, ribbed, one-piece and elastic designs all work well with field, military, dive and sports watches. Canvas and sailcloth give you the same casual look with a thicker, more structured feel.

Rubber is the natural choice for sports and dive watches, exercise and warmer weather. The collection includes straight-end straps for standard lugs, plus curved and fitted options for selected models. If you plan to swim or dive with your strap, check the compatibility, water resistance and care details before ordering.

How to Choose the Right 20mm Watch Strap for You

Start by checking that the gap between the inside edges of your watch lugs is exactly 20mm. The size is often printed on the underside of your current strap, or you can measure the gap with a ruler or callipers. A 19mm or 21mm strap won't fit as intended.

Next, compare the available lengths with a strap that already fits you well. If you want to reuse your original buckle or deployment clasp, make sure its width matches the buckle end of the new strap.

Then it comes down to how you wear your watch. Leather suits everyday and smarter wear, nylon is light and casual, rubber handles active use, and stainless steel gives a bracelet-style finish. If you like to change straps often, look for quick-release spring bars.

Some straps are shaped for particular watches, so always check the compatibility details. If you're not sure about size, length or fitting, get in touch and we'll help you find the right strap.

20mm Watch Straps FAQs

How do I know if my watch takes a 20mm strap?

Measure the gap between the inside edges of the lugs, where the strap joins the case. If it's exactly 20mm, you need a 20mm watch strap. The size is often printed on the underside of your current strap, but it's worth measuring if you're not sure. Keep in mind this is separate from the case diameter and the strap length.

Will any 20mm strap fit my watch?

A straight-ended 20mm strap will usually fit any watch with conventional lugs and a 20mm gap. Curved-end, fitted and integrated straps only suit certain case shapes or models, so always check the fitting details on the product page before ordering.

Can I change a 20mm watch strap myself?

Usually, yes. Quick-release straps have a small lever that lets you remove and refit the spring bar without any tools. Standard spring bars need a spring-bar tool. Work carefully to avoid scratching the case, and if the fitting is unfamiliar, a watch repairer can do it for you in minutes.

How quickly will my 20mm watch strap arrive?

Orders placed before 3pm, Monday to Friday, are dispatched the same working day. Royal Mail Tracked 24 usually arrives within one to two working days, although it isn't a guaranteed service. UK delivery is free on orders over £100.

Read less