Spend £99 for Free Shipping Delivery
24-Month Warranty
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Made To Last
14 Day Returns
Helmway FKM Sailcloth Strap – Stealth Black
Up to 40% Exclusive Discount
Live Inventory: Limited Availability
Free Worldwide Delivery
24-Month Warranty
UP TO 40% OFF - EXCLUSIVE CLEARANCE SALE
As a valued member of the Emerton Scott Family, you have priority access to the last remaining pieces of our current accessory collections.
This sale is not available to the general public yet.
We are refreshing our collections ready for 2027, so all items must go.
Once these final pieces are sold out, they will not be available at this price again.
What is FKM Rubber?
FKM (Fluoroelastomer) is a high-density synthetic rubber designed for extreme conditions. Used in aerospace and marine engineering, it is the highest-quality rubber material available for watch straps.
Key Benefits
- Repels Dust & Lint: Features an anti-static surface that stays clean and clear of pet hair, dust, and fluff.
- 100% Waterproof & Odor-Free: Fully impervious to fresh water, salt water, and sweat. Won't absorb moisture or trap unpleasant odors.
- All-Weather Durability: Highly resistant to UV light, heat, and cold. Will not fade, crack, or turn sticky over time.
- Immediate Wrist Comfort: Soft and flexible right out of the box with zero break-in period required.
- Hypoallergenic & Safe: Free from toxic additives, making it gentle on sensitive skin.
20mm to 18mm Taper
20mm Lug Width
100% Water Proof
Instant Comfort
Sweat-Safe
Quick-Release Spring Bars
UV & Heat Resistant
Slim Profile
Anti-Static (Dust-Free)
316L Surgical Steel Buckle
Long Lasting Premium Quality
Sizing & Fit
Lug Width / Buckle Width: 20mm lug width / 18mm buckle width
Strap Length: 124mm (long side) / 74mm (short side, excluding buckle) / 90mm (short side, including buckle)
Wrist Size Compatibility: Fits wrist sizes approximately 6.25 inches to 7.75 inches (160mm – 195mm)
Strap Thickness: Padded design (4.5mm at lugs tapering down to 2.6mm at tail)
Strap Taper: 20mm at lugs to 18mm at buckle
Hole Count & Spacing: 8 precision-punched round adjustment holes
Case Fit / Watch Compatibility: Universal straight-end (fits standard 20mm lug watch cases)
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Materials, Build & Features
Strap Style: Two-piece sailcloth textured pattern with accent perimeter stitching
Material & Grade: Premium FKM rubber strap
Buckle Style: Classic Pin / Tang Buckle
Buckle Material & Finish: Brushed 316L Surgical-Grade Stainless Steel with engraved logo
Spring Bars: Integrated Quick-Release
Water & Chemical Resistance: Water and chemical resistant
Dust & Lint Resistance: Yes (anti-static surface)
Edge Work & Finish: Sealed edges with tone-on-tone perimeter stitching
Choose options
Engineered for Endurance
Uncompromising Utility, Formed for Comfort
At the core of our premium straps lies high-grade FKM (fluoroelastomer) synthetic rubber—engineered to withstand extreme heat, chemicals, and daily wear without degradation.
Molded under high pressure and cured for over 12 hours, each strap offers exceptional tensile strength, UV resistance, and dust-repellent properties while maintaining a soft, supple feel on the wrist.
Finished with hand-bevelled edges, custom hardware, and micro-textured lining, it delivers long-lasting comfort—combining rugged durability with refined craftsmanship.
100% Waterproof & Sweatproof
Engineered for marine and high-intensity wear. FKM rubber absorbs zero moisture, eliminates sweat odor, and rinses clean in seconds.
Clean All Day
Unlike cheap silicone, our specialized FKM compound repels dust, lint, and pet hair to keep your watch looking crisp and clean all day.
Instant Comfort
Ultra-soft, pliable fluoroelastomer molds naturally to your wrist right out of the box—delivering zero break-in period and all-day ease.
Tool-Free Quick-Release
Integrated quick-release spring bars let you switch up your style in under five seconds using just your fingernail—no tools or scratched lugs.
Sun & Weather Resistant
Built to withstand extreme heat, freezing conditions, and direct sunlight without cracking, fading, hardening, or becoming sticky over time.
316L Steel Hardware
Fitted with a robust, marine-grade 316L steel buckle that offers maximum corrosion resistance and a secure, heavy-duty fit.
All Colours
Braxon FKM Rubber Collection
Our Values & Philosophy
Crafted with Purpose
We believe that every accessory should enhance your ownership experience. Whether it’s a quick-release strap, a travel roll, or custom hardware, every detail is engineered from the ground up for seamless functionality, intuitive use, and timeless aesthetic appeal.
Made to Last
We build for longevity, not fast consumption. Our accessories are tested to endure heavy daily wear, extreme environments, and years of travel without degrading—ensuring your collection stays protected and ready for every journey.
Using the Best Materials
Quality starts at the source. From surgical-grade metals and high-density rubbers to premium leathers and protective textiles, we source only the best materials that deliver maximum durability, unyielding performance, and an elevated tactile feel.
Frequently Asked Questions
Common Strap Questions
This strap is compatible with any watch that has a standard 20mm lug width. Because it features straight spring-bar ends, it fits seamlessly onto almost all traditional, field, diver, and chronograph watch cases.
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More sizing details
Lug Width / Buckle Width: 20mm lug width / 18mm buckle width
Strap Length: 124mm (long side) / 74mm (short side, excluding buckle) / 90mm (short side, including buckle)
Wrist Size Compatibility: Fits wrist sizes approximately 6.25 inches to 7.75 inches (160mm – 195mm)
Strap Thickness: Padded design (4.5mm at lugs tapering down to 2.6mm at tail)
Strap Taper: 20mm at lugs to 18mm at buckle
Hole Count & Spacing: 8 precision-punched round adjustment holes
Case Fit / Watch Compatibility: Universal straight-end (fits standard 20mm lug watch cases)
No tools required. The strap comes fitted with integrated Quick-Release Spring Bars. You can install or remove it in under five seconds using just your fingernail, making it effortless to swap colors or styles without scratching your watch lugs.
FKM (fluoroelastomer) is a high-density, aerospace-grade compound. Unlike cheap silicone, FKM does not attract dust, lint, or pet hair, won't crack or fade under UV light, and offers far higher tear strength while remaining ultra-soft and flexible on the wrist.
Yes, 100%. FKM is completely waterproof, sweatproof, and immune to salt water, chlorine, and body oils. Because the material is non-porous, it will not absorb moisture or trap bacteria, keeping it completely odor-free.
Absolutely. Our FKM rubber compound is 100% hypoallergenic and free from toxic fillers or plasticizers. Paired with a marine-grade 316L stainless steel buckle, it eliminates skin irritation, rashes, and contact allergies.
Every FKM Strap is covered by a 2-year warranty.
Please see our FAQ page for more details in regards to what is covered within our warranty.
Shipping & Returns
Yes, we offer free no-hassle global shipping.
Here is your refined return policy adapted specifically for watch straps, maintaining a clear, professional tone while eliminating watch-head references:
We want you to be completely satisfied with your purchase. If for any reason you would like to return your strap, you may do so within 14 days of receiving your order.
To qualify for a return:
- Condition: The strap must be in perfect, unworn, and resalable condition.
- Packaging & Tags: All original packaging, tags, stickers, and protective films must remain intact and untampered with.
- Complete Order: All accessories included in the shipment (such as extra buckles, spring-bar tools, spring bars, or travel pouches) must be returned in full.
- No Signs of Wear: Straps that have been installed on a watch, creased, bent, buckled, or tailored are no longer eligible for return.
- Personalised Items: Custom, modified, or engraved straps/hardware cannot be returned.
- Pre-Orders: Pre-order items that have not yet been dispatched may be cancelled for a full refund. Once dispatched, standard return rules apply.
We reserve the right to adjust or refuse a refund if the item is returned worn, damaged, incomplete, or handled beyond what is reasonably necessary to inspect the product.
Shipping & Handling Deductions
- Outbound Shipping & Tariffs: While we offer free worldwide shipping, initial carrier shipping costs and any tariffs paid on your behalf will be deducted from your total refund amount.
- Return Shipping Fees: Return delivery costs will be deducted directly from your refund amount. A flat fee of £10.00 applies to all strap orders under £200 (£30.00 for orders £200 and above).
- Import Duties & Taxes: Any localized customs duties, import taxes, or courier brokerage fees incurred during initial delivery or return transit are non-refundable and will be deducted from your refund amount.
You can cancel your purchase or reservation anytime.
Shopify and Airwallex charges us 6% for every transaction a customer makes through our website.
This 6% payment processing fee will be deducted from your refund to cover payment processing fees.
So please consider your pre-order carefully before placing the order as this policy as we want to make sure you're making the right decision before committing to the project.
If you are not 100% committed to the project, please do not pre-order.
I would rather you wait to see if any pieces are remaining nearer our launch date.
Please email me at scott@emertonscott.com if you have any questions before pre-ordering or processing fees.
Shipping worldwide is free on all orders above 99 gbp.
Shipping will be calculated at checkout for all orders below depending on the country being delivered to.
Tarrifs, Duties & Taxes
At checkout, you will be given shipping options for your purchase (depending on your country).
Each shipping option will show if tariffs and duties are included or not.
If you have any questions, please email scott@emertonscott.com before purchase.