IWC Watch Strap Guide
Changing the strap on your prized IWC watch is one of the quickest and easiest ways to transform its look. Whether you are looking to refresh an old favourite or match your watch to an outfit, we have you covered.
At Watch And Strap, we are an independent producer of premium watch accessories, built by watch collectors for our own watch collections. With over 100 straps available, our focus is premium quality for a fair price. All our designs are tested for at least 6 months of daily wear and provided with a years warranty. With our strong quick release pins, you can change your strap in a matter of seconds.
Which Material Is Right For You
Full Grain Leather
The term "genuine leather" is often considered to be a sign quality however this is wrong. Genuine leather is a very ambiguous term and could mean anything from left over scraps glued together to the highest quality hides. Full grain leather is the strongest part of the hide using At Watch And Strap we only use full grain leather
Suede
Suede originated from Swedish leather imported to France with its name meaning "gloves of Sweden". Swedish artisans had developed a way of using the soft underside of the hide to make soft, comfortable gloves for women. Today, suede is used for everything from beautiful jackets to cushions and watch straps. Suede may not be as hard wearing as full grain leather but has much softer, lighter finish which would compliment your prized timepiece beautifully.
Sailcloth
Built to withstand the toughest of ocean conditions, sail cloth is hardwearing and water proof. Nylon thread, weaved in a strong Oxford weave pattern. If you are looking for a lightweight, hardwearing and waterproof strap, sail cloth may be the material for you.
Bio Leather
100% eco friendly bio leather, 100% as hardwearing as full grain leather, 0% plastic. Over the years we have had a lot of requests for "vegan leather" watch straps. However, none of the materials available held up. Thats when we found Uncaged Innovations.
Based in White Plains, New York, Uncaged Innovations harness plant proteins in a sturcture of traditional full grain leather. 95% less greenhouse gases, 89% less water and 71% less energy compared to traditional full grain leather yet still with unparalleled durability and exquisite texture of the finest leathers in the world.
FKM Rubber
The ultimate strap material for durability, comfort and resistance to the worlds elements. FKM rubber is heat resistant, UV resistant and waterproof.
At Watch And Strap, we work exclusively with the most tried and tested suppliers to make sure our FKM rubber straps last.
Shop By Material
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Leather Watch Straps
Watch And Strap's full range of handmade full grain leather watch straps....
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Suede Watch Straps
Suede originated from Swedish leather imported to France with its name meaning...
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Sail Cloth Watch Straps
Designed by watch collectors for the adventurous lifestyle. Trusted by yachtsmen worldwide,...
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FKM Rubber Watch Straps
Introducing the Lisbon Collection, our first collection of Cut To Size FKM...
Lug Width - Strap Size
The 'Lug Width' is the measurement between the two arms of the lug which hold the strap in place. You can find out the lug width in two different ways, the most reliable way would be to find the reference number (usually engraved in the bottom right hand corner of the back of the case) or measure the distance with a reliable tape measure. We have included a helpful size guide below for some of IWC most popular models.
Lug Width By Model
IWC Pilot Watch Lug Widths
| Reference Number | Model Name | Lug Width |
| IW3201/IW3261 | Pilot Antoine De Saint | 21mm |
| IW3240/IW3241/IW3242 | Pilot 36mm | 18mm |
| IW3247/IW3248 | Pilot Mark XVIII | 20mm |
| IW3251 | Pilot Spitfire UTC | 20mm |
| IW3253 | Pilot Mark XV | 19mm |
| IW3255 | Pilot Mark XVI | 20mm |
| IW3256 | Pilot Watch Midsize | 16mm |
| IW3262 | Pilot Worldtimer | 22mm |
| IW3265/IW3268/IW3269 | Pilot Mark XVII | 20mm |
| IW327X/IW328X | Pilot | 20mm |
| IW370X | Pilot Chronograph | 20mm |
| IW371X | Pilot Chronograph | 21mm |
| IW374X | Pilot Mecaquartz | 18mm |
| IW3757/IW3777 | Pilot Chronograph | 21mm |
| IW3778 | Pilot Double Chrono | 22mm |
| IW3779/IW3780 | Pilot Chronograph | 21mm |
| IW3791/IW3799 | Pilot Chronograph | 22mm |
| IW3878 | Pilot Chronograph | 21mm |
| IW3879 | Pilot Chronograph | 20mm |
| IW3880 | Pilot Chronograph | 22mm |
| IW3881/IW3883 | Pilot Chronograph | 20mm |
| IW3888/IW3890/IW3891 | Pilot Chronograph | 21mm |
| IW3894 | Pilot Chronograph | 20mm |
| IW3922 | Pilot Perpetual Calendar | 21mm |
| IW3950/IW3955/IW3956 | Pilot Timezoner | 22mm |
IWC Big Pilot Watch Lug Widths
| Reference Number | Model | Lug Widths |
| IW329X | Big Pilot 43mm | 21mm |
| IW3396 | Big Pilot Perpetual | 21mm |
| IW35XX | Big Pilot Shock Absorber | 22mm |
| IW5XXX | Big Pilot | 22mm |
IWC Portofino Lug Widths
| Reference Number | Model | Lug Width |
| IW2010/IW3331 | Portofino Ultra Thin | 18mm |
| IW3446 | Portofino Perpetual Cal. | 20mm |
| IW3513/IW3514 | Portofino Automatic | 18mm |
| IW3533 | Portofino Automatic | 20mm |
| IW3550 | Portofino Moonphase | 18mm |
| IW3563 | Portofino Automatic | 20mm |
| IW3564/IW3574 | Portofino Midsize | 16mm |
| IW3565 | Portofino Automatic | 20mm |
| IW3590 | Portofino Comp. Calendar | 20mm |
| IW3592 | Portofino Pointer Date | 18mm |
| IW3724 | Chronograph MecaQuartz | 20mm |
| IW3730 | Portofino Chronograph | 16mm |
| IW3731 | Portofino Chronograph | 18mm |
| IW3783/IW3910/IW3914 | Portofino Chronograph | 20mm |
| IW458X/IW4590/IW4591 | Portofino 37mm | 18mm |
| IW4594 | Portofino 40mm | 20mm |
| IW4598 | Portofino 34mm | 16mm |
| IW5101/IW5111/IW5151 | Portofino 45mm | 22mm |
| IW5161/IW5162/IW5164 | Portofino Big Date | 22mm |
| IW6586 | Portofino 37mm | 18mm |
IWC Portugieser Lug Widths
| Reference Number | Model | Lug Width |
| IW3266/IW3440 | Portugieser Yacht Club | 22mm |
| IW3442 | Portugieser Perpetual | 22mm |
| IW3583/IW3584 | Portugieser 40mm | 20mm |
| IW3712/IW3714/IW3716 | Portugieser Chronograph | 20mm |
| IW3774/IW3776 | Portugieser Grande Comp. | 20mm |
| IW50XX | Portugieser | 22mm |
Shop By Lug Width
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18mm Watch Straps
Shop our full collection of 18mm watch straps. Handmade using full grain...
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20mm Watch Straps
Largely the most common size of watch strap. 20mm watch straps can...
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24mm Watch Straps
As watches get large, so do the lug width of the straps...
The Perfect Fit For Your Wrist
Add the "Total Usable Length" figure in the Product Specifications to the distance between the top and bottom lug of your watch. The result will give you the wrist size range of the strap when used on your watch. For example: a strap with a total usable length of 130-175mm placed on a 40mm watch will fit wrists between 170-215mm in circumference.
Ready To Find Your Perfect Strap?
Our Best Selling Straps
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The Rome: Copper Brown Italian Full Grain Leather Watch Strap
Regular price From £34.99 GBPFrom £34.99 GBP Regular priceUnit price / perSale price -
The Oxford: Navy Blue Padded Calf Skin Watch Strap
Regular price From £32.99 GBPFrom £32.99 GBP Regular priceUnit price / perSale price -
The Berlin: Cracked Burgundy Padded Leather Watch Strap
Regular price From £30.99 GBPFrom £30.99 GBP Regular priceUnit price / perSale price -
The Oslo: Jet Black Full Grain Leather Watch Strap
Regular price £32.99 GBP£32.99 GBP Regular priceUnit price / perSale price



