

FKM Rubber Strap For Rolex Submariner 40 (GWS Buckle Fitment) - Navy Blue
Note: Designed for the 40mm Submariner models. Does not fit 41mm models.
Lifetime Warranty
Free Shipping
30-Day Returns
Upgrade your Rolex Submariner 40mm with this navy blue FKM curved strap for a refined yet sporty finish, delivering a clean, tailored look that enhances the watch’s overall presence. The deep blue tone pairs effortlessly with both black and blue dial variants, adding subtle contrast while maintaining a cohesive, balanced aesthetic on the wrist. Designed with precision in mind, the curved construction follows the case lines closely, creating a seamless fit that feels integrated and refined, a hallmark of well-crafted fkm rubber straps for Rolex.
Made from premium FKM rubber, this curved rubber strap for Rolex Submariner offers strong resistance to fading, sweat, and saltwater exposure while remaining flexible and comfortable during extended wear. The material retains its structure without becoming rigid, ensuring long-term durability across daily use and more demanding conditions. Featuring GWS buckle fitment for secure fastening, this Submariner 40mm replacement strap delivers a dependable blend of durability, flexibility, and understated luxury suited to modern everyday wear.
Note: Designed for the 40mm Submariner and does not fit 41mm models.
Product Details
- Lug Width: 20mm
- Strap Size: 120mm/80mm
- Material: FKM fluoroelastomer
- End Profile: Curved end design for a seamless case integration
Shipping Information
Geneva Watch Straps offers worldwide delivery via Royal Mail.
- UK: 2 business days
- Europe: 3–5 business days
- International: 5–7 business days
All shipments are tracked and insured to ensure your order arrives safely.
Please note, international orders may be subject to local import taxes. Geneva Watch Straps is not responsible for such charges.
Care Instructions
- Rinse with fresh water after exposure to sweat, salt, or chlorine.
- Clean gently with mild soap and soft cloth when required.
- Allow to dry fully before storage.
Choose options
20% OFF FOR NEW CUSTOMERS
Use code: PFTC20
FKM Rubber for Iconic Rolex Watches.
A Look For Every Occassion
Precision-engineered FKM rubber straps designed to transition seamlessly from sophistication to sport.

Before

After

Our Story
2024
While searching for replacement straps for their own watches, Alex and Spencer encountered a market dominated by cheaply produced products, misleading marketing, and brands prioritising speed and margins over quality and longevity.
Rather than accept compromise, the decision was made to build what was missing.

The Build
2025
Founded and manufactured in Manchester, United Kingdom, Geneva Watch Straps committed to doing things properly from the start.
Over 19 months dedicated to research, prototyping, and refinement. More than 100 individual samples were produced and tested.
Only premium grade materials were selected, including high grade FKM rubber and watch grade leather, chosen for their durability, comfort, and long term performance.

Fastforward To Today
2026
Geneva Watch Straps now represents a new benchmark in luxury aftermarket watch straps.
Now serving the global watch market, our straps are created for collectors who demand uncompromising quality, longevity, and refinement.
Built by collectors, for collectors, each strap is engineered for daily wear and designed to age as gracefully as the watch it supports. No trends. No shortcuts. No compromise.
FREQUENTLY ASKED QUESTIONS
GENERAL
SHIPPING
What is FKM rubber?
FKM rubber is a high-performance fluoroelastomer used in aerospace and precision engineering. It is the gold standard for luxury watch straps due to its exceptional durability, comfort, and resistance to heat, water, UV exposure, sweat, and chemicals.
Why is FKM rubber superior?
Unlike standard rubber or silicone, FKM does not crack, fade, or become sticky over time.
It is non-allergenic, odour-resistant, and maintains its shape and finish even with daily wear, making it the finest rubber available for high-end watch straps.
Do you offer lifetime warranty?
Yes, we offer lifetime warranty for all our straps!
Please note that this warranty excludes damages arising from misuse, accidents, or intentional harm to the product.
Where are you based?
We are based in the city of Manchester, UK!
Do you ship internationally?
Yes. We’re based in the UK and offer worldwide shipping.
All orders are dispatched using fully insured and tracked courier services to ensure your strap arrives safely and securely, wherever you are in the world.


