

Rubber Strap - For Blancpain X Swatch - Deep Sea Black
Strap Recommendations:
Helvetus Rubber Strap in Deep Sea Black
Upgrade your Fifty Fathoms with this Deep Sea Black rubber strap by Helvetus. The sleek, uniform black delivers understated elegance while ensuring everyday comfort and a secure fit.
Crafted from allergy-free natural rubber, this strap offers a smooth, durable feel that’s built to last. It’s an ideal match for watch owners seeking a clean, modern look with premium performance.
The Helvetus Excellence Service (included)
- Lifetime Warranty
- Easy Returns
- Worldwide Shipping
Details:
Material: Premium Natural Rubber (allergy free)
Size: 120mm + 80mm
Width: 22mm
Thickness: 3mm thin
Color: Deep Sea Black
Package includes:
- The strap with the chosen buckle
- Spring bars (watch pins)
Add the matching installation tool for easy setup.
Helvetus is not affiliated with Swatch AG or Blancpain SA.
Note: The watch strap is for sale, not the watch.
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Engineered to Fit
Each strap in this collection is precision-engineered exclusively for the Blancpain × Swatch Fifty Fathoms, ensuring a seamless, factory-perfect fit. Every lug width, curve, and taper has been meticulously calibrated so that your timepiece sits exactly as it was intended to.
Uncompromising Materials
Our rubber straps are crafted from high-grade, vulcanised rubber — supple yet resilient, resistant to the elements, and refined in texture. Every millimetre reflects an unrelenting commitment to quality that honours the prestige of the watch it adorns.
Effortless Exchange
Designed for swift and seamless swapping, every Helvetus strap installs and removes with complete ease — no compromises, no complications. Change the character of your Blancpain × Swatch Fifty Fathoms in moments, and return to wearing it exactly as it deserves to be worn.
Spring bars are included.






