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Model 307 draws directly from classic waffle-pattern designs, a look closely associated with early dive watches and vintage sports models. The raised grid texture adds visual depth without feeling busy, giving the strap a distinctly retro character that pairs easily with both vintage and modern cases.
The overall profile is clean and uncomplicated, letting the surface pattern do the work. It’s a good option when you want a softer, more traditional dive-strap look rather than bold sculpting or aggressive wave designs.
Made in Italy from vulcanized NBR rubber. Waterproof, UV-resistant, and nonallergenic.
The strap is made from vulcanized nitrile butadiene rubber (NBR), selected for its durability, flexibility, and resistance to seawater and sunlight. The vulcanization process strengthens the material while preserving a soft, supple feel, allowing the strap to flex easily and sit comfortably on the wrist.
The waffle texture adds grip and subtle cushioning, while the matte finish helps resist lint and dust and maintains a classic, understated appearance.
Carries a light vanilla scent, typical of Italian-made vulcanized rubber.
Thickness: approx. 2.5mm
Sheen: Matte
Buckle: Polished stainless steel
Taper by size:
Spring bars: Standard (free pair included)
Model 307 works well on a wide range of watches, particularly vintage-inspired divers and everyday sports watches where a softer strap helps balance the case. The textured surface improves comfort and flexibility, making it well suited to all-day wear.
This model accommodates spring bars up to 1.5mm in diameter.
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 / 78mm (fits wrists approx. 6.75–7.75in)
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