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Model 324 uses a molded carbon-style surface with sharply beveled sides, giving the strap a clean, technical look. The flat center keeps it visually restrained, while the angled edges slim the profile on the wrist.
The floating keepers carry the same embossed pattern, so the strap looks consistent once it’s buckled. It’s a solid option when a plain rubber watch strap feels too stripped back, but heavier wave designs feel excessive.
Made in Italy from vulcanized NBR rubber. Waterproof, UV-resistant, and nonallergenic.
The rubber is firm and elastic, bending easily without collapsing. It holds its shape and stays controlled during wear.
The textured surface adds light grip without feeling rough. A matte finish keeps it low-key and practical day to day.
Carries a light vanilla scent, typical of Italian-made vulcanized rubber.
Thickness: approx. 5.5mm→3.5mm (measured at lug end, tapering toward buckle)
Sheen: Matte
Buckle: Polished stainless steel
Taper by size:
Spring bars: Standard (free pair included)
Apple Watch: 22mm fits Apple Watch (with strap adapters).
This model wears slimmer than it measures thanks to the beveled sides. It stays aligned on the wrist and resists twisting as you move.
The floating keepers keep excess length tidy and in place during daily wear.
For a deeper look at how rubber straps behave on the wrist, see our guide to rubber strap fit and comfort.
Length & wrist size:
125mm / 75mm (fits wrists approx. 7.0–7.75in)
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