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Model RX01 is shaped specifically for Rolex cases, with curved ends that sit flush against the lugs for a seamless, integrated look. There’s no gap and no straight-edge break; the strap follows the case line closely and keeps the watch looking cohesive on the wrist.
This model is intended for Rolex Submariner, Submariner Date, and Yacht-Master 40. It’s designed to be paired with the factory clasp rather than a standard buckle, keeping the original hardware and fit intact.
Made in Italy from vulcanized NBR rubber. Waterproof, UV-resistant, and nonallergenic.
The rubber is firm and structured, with reinforced lug ends that resist flexing around the spring bar area. This added density helps prevent splitting or cracking over time, especially on watches that see frequent wear.
Carries a light vanilla scent, typical of Italian-made vulcanized rubber.
Thickness: approx. 5.9mm→3.0mm (measured at lug end, tapering toward buckle)
Sheen: Matte
Taper by size:
Spring bars: Standard (free pair included)
RX01 is built to integrate with the Rolex clasp system (Glidelock, Oysterlock) rather than functioning as a standalone strap. The tube sizing accommodates screw pins, and an extra spring bar is included for clasp attachment.
Because of the curved ends and case-specific shaping, this model is not interchangeable with standard straight-end straps and should be used only on the compatible Rolex references listed above.
For a deeper look at how rubber straps behave on the wrist, see our guide to rubber strap fit and comfort.
Length & wrist size:
95mm / 60mm (fits wrists approx. 6.75–7.5in)
Measurements exclude the buckle.
Water exposure: Waterproof, designed for prolonged water exposure including swimming and diving.
For routine care, rinse with lukewarm water and mild soap as needed. Rinse thoroughly to remove residue. Avoid solvents, petroleum-based cleaners, and abrasive materials, as these can damage the rubber. Dry with a soft cloth and allow the strap to air dry completely before wearing.
Bonetto Cinturini is an Italian manufacturer with more than forty years of experience producing rubber watch straps for professional and everyday use. The brand specializes in straps made from vulcanized nitrile butadiene rubber, selected for its durability, flexibility, and resistance to seawater and UV exposure.
Bonetto Cinturini straps are widely used by watch manufacturers and enthusiasts who value long-term performance, comfort, and straightforward, functional design.
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Independent watch strap specialist since 2007