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20mm Watch Straps

Find 20mm watch straps in a mix of styles, from classic silicone to bold colours. Brands such as Reflex Active, Sekonda, Casio and Lorus offer interchangeable designs, smart watch ready features and options for sport or everyday looks. Switch up your watch and let your wrist do the talking.

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      396 products
      Casio Digital Display Black Resin Strap Watch
      Rating 4.7 out of 5, from 3580 reviews
      £14.00

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      Casio Illuminator Stainless Steel Bracelet Watch
      Rating 4.7 out of 5, from 1117 reviews
      £31.00

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      Casio Unisex Analogue White Dial Black Resin Strap Watch
      Rating 4.7 out of 5, from 1607 reviews
      £13.00

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      Constant Ladies White Dial Black Strap Watch
      Rating 4.4 out of 5, from 1879 reviews
      £8.00

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      Casio Black Resin Strap Watch
      Rating 4.6 out of 5, from 2055 reviews
      £24.00

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      Lorus Men's Lumibrite Grey Fabric Web Strap Watch
      Rating 4.6 out of 5, from 1772 reviews
      £35.00

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      Casio Blue Resin Strap Watch
      Rating 4.7 out of 5, from 429 reviews
      £16.00

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      Casio Power LCD Digital Black Resin Strap Watch
      Rating 4.7 out of 5, from 2689 reviews
      £23.00

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      Limit Easy Read Green Silicone Strap Watch
      Rating 4.6 out of 5, from 643 reviews
      £10.00

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      Casio Grey Dial Black Strap Digital Watch
      Rating 4.8 out of 5, from 72 reviews
      £31.00

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      Casio Pink Resin Strap Watch
      Rating 4.8 out of 5, from 493 reviews
      £17.00

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      Casio Unisex Analogue Black Dial Black Resin Strap Watch
      Rating 4.7 out of 5, from 462 reviews
      £16.00

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      Casio Orange Resin Strap Watch
      Rating 4.8 out of 5, from 181 reviews
      £17.00

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      Constant Quartz Men's Black Faux Leather Strap Watch
      Rating 4.2 out of 5, from 945 reviews
      £8.00

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      Limit Ladies Glow Dial Gold Plated Strap Watch
      Rating 4.7 out of 5, from 859 reviews
      £10.00

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      Sekonda Fitness Tracker Pink Silicone Strap Smart Watch
      Rating 4.4 out of 5, from 183 reviews
      £40.00

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      Casio G-SHOCK Men's Black Resin Strap Watch
      Rating 4.8 out of 5, from 719 reviews
      £100.00

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      Casio Retro Blue Resin Strap Watch
      Rating 4.7 out of 5, from 309 reviews
      £17.00

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      Limit Easy Read Black Silicone Strap Watch
      Rating 4.6 out of 5, from 643 reviews
      £10.00

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      Casio Blue Digital Resin Strap Watch
      Rating 4.8 out of 5, from 183 reviews
      £26.00

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      Reflex Active Corrus Black Strap Calling Smart Watch
      Rating 4.1 out of 5, from 144 reviews
      £25.00

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      Limit Ladies Purple Faux Leather Strap Watch
      Rating 4.6 out of 5, from 1113 reviews
      £13.00

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      Limit Men's Glow Dial Black Faux Leather Strap Watch
      Rating 4.5 out of 5, from 882 reviews
      £13.00

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      Lorus Men's Digital Display Black Resin Strap Watch
      Rating 4.5 out of 5, from 630 reviews
      £20.00

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      Casio Men's Grey Dial Classic Digital Watch
      Rating 4.6 out of 5, from 8 reviews
      £35.00

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      Casio Digital Illuminator Black Resin Strap Watch
      Rating 4.7 out of 5, from 345 reviews
      £24.00

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      Limit Men's Brown Faux Leather Strap Watch
      Rating 4.6 out of 5, from 466 reviews
      £14.00

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      Limit Men's Black Faux Leather Strap Watch
      Rating 4.5 out of 5, from 334 reviews
      £14.00

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      Casio Illuminator Black Resin Strap Watch
      Rating 4.7 out of 5, from 94 reviews
      £26.00

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      Sekonda Men's Gold Plated Case Brown Leather Strap Watch
      Rating 4.6 out of 5, from 356 reviews
      £26.00

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      Casio Men's Vibration Alarm Black Resin Strap Watch
      Rating 4.6 out of 5, from 359 reviews
      £28.00

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      Sekonda Ladies Black Leather Strap Watch
      Rating 4.7 out of 5, from 155 reviews
      £26.00

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      Lorus Men's Black Leather Strap Watch
      Rating 4.5 out of 5, from 227 reviews
      £35.00

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      Sekonda Men's Black Leather Strap White Dial Watch
      Rating 4.5 out of 5, from 299 reviews
      £25.00

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      Reflex Active Series 8 Black Silicone Strap Smart Watch
      Rating 3.6 out of 5, from 39 reviews
      Lowest Price
      £20.00

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      Casio Alarm And Black Resin Strap Watch
      Rating 4.6 out of 5, from 490 reviews
      £21.00

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      Sekonda Ladies Rose Gold Plated Stone Set Nude Strap Watch
      Rating 4.6 out of 5, from 229 reviews
      £20.00

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      Casio Brown Genuine Leather Strap Watch
      Rating 4.7 out of 5, from 457 reviews
      £31.00

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      Casio Wave Ceptor LCD Digital Black Resin Strap Watch
      Rating 4.7 out of 5, from 537 reviews
      £36.00

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      Limit Ladies Pink Faux Leather Strap Watch
      Rating 4.6 out of 5, from 1113 reviews
      £14.00

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      Casio World Time LCD Black Resin Strap Watch
      Rating 4.7 out of 5, from 450 reviews
      £24.00

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      Casio Telememo Digital Black Resin Strap Watch
      Rating 4.6 out of 5, from 428 reviews
      £28.00

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      INFO exclusive
      Limit Ladies Blue Faux Leather Strap Watch
      Rating 4.6 out of 5, from 157 reviews
      £13.00

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      Limit Ladies Burgundy Faux Leather Strap Watch
      Rating 4.5 out of 5, from 89 reviews
      £10.00

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      Timex Ladies Black Leather Strap Watch
      Rating 4.8 out of 5, from 231 reviews
      £38.00

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      Lorus Men's Chronograph Brown Leather Strap Watch
      Rating 4.7 out of 5, from 289 reviews
      £50.00

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      Sekonda Ladies White Stone Set Silicone Strap Watch
      Rating 4.7 out of 5, from 228 reviews
      £18.00

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      Limit Easy Read Purple Silicone Strap Watch
      Rating 4.6 out of 5, from 643 reviews
      £10.00

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      Sekonda Men's Black Leather Strap Black Dial Watch
      Rating 4.5 out of 5, from 459 reviews
      £20.00

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      Sekonda Men's Black Leather Strap Silver Dial Watch
      Rating 4.5 out of 5, from 459 reviews
      £22.00

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      2 Colours available
      Tikkers Kids Series 13 Bright Blue Strap Smart Watch
      Rating 4.5 out of 5, from 209 reviews
      £25.00
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      Reflex Active Interchangeable Strap Calling Smart Watch
      Rating 4.6 out of 5, from 117 reviews
      £30.00

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      Sekonda Men's Black Silicone Strap Sports Watch
      Rating 4.5 out of 5, from 183 reviews
      £26.00

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      Sekonda Black Silicone Strap Fitness Tracker Smart Watch
      Rating 4.4 out of 5, from 183 reviews
      £40.00

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      Casio Mens Black Dial Green Strap Digital Watch
      Rating 5.0 out of 5, from 2 reviews
      £28.00

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      Tikkers Smart Series 13 Pink Camo Silicone Strap Smart Watch
      Rating 5.0 out of 5, from 1 reviews
      £25.00

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      2 Colours available
      Reflex Active Grey Smart Watch With Silicone Strap
      Rating 3.4 out of 5, from 243 reviews
      From
      £20.00
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      Timex Men's Black Leather Strap Watch
      Rating 4.7 out of 5, from 216 reviews
      £34.00

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      Casio Digital Solar Black Resin Strap Watch
      Rating 4.6 out of 5, from 409 reviews
      £41.00

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      Reflex Active Interchangeable Smart Watch Strap Set
      Rating 4.8 out of 5, from 90 reviews
      £10.00

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