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Rubber watch strap: the guide for sports and diving watches

The rubber strap has established itself as the ideal companion for sports and diving watches. But not all rubbers are created equal. FKM, vulcanized, silicone: here's how to choose the right one.Types of RubberFKM (Fluoroelastomer)The high-end of watchmaking rubber. Resistant to UV, oils, heat, and chemicals. Silky touch, does not stick to the skin. This is the material used by major brands (Rolex Oysterflex, Hublot). Discover our FKM straps.Vulcanized RubberNatural rubber treated by vulcanization to improve its resistance. More flexible than FKM, excellent value for money. This is the material of the famous Rubber B and Tropic straps.SiliconeThe most affordable but also the least qualitative. Tends to attract dust and can stick to the skin in hot weather. Acceptable for entry-level but to be avoided on valuable watches.Leather-Combined RubberThe best of both worlds: leather aesthetic on top, comfort and resistance of rubber against the skin. See our combined straps.FKM vs Silicone: The Real Differences Feel: FKM is silky and dry, silicone is stickier Durability: FKM lasts 5-10 years, silicone 1-3 years UV: FKM does not yellow, silicone can discolour Price: FKM €80-250, silicone €15-50 For Which Watches? Dive watches: FKM or vulcanized — total water resistance Sport chronographs: FKM for a premium look Everyday watches: combined leather-rubber for versatility Luxury watches: Rubber B or FKM alligator for Rolex, Patek, AP MaintenanceRubber is the easiest material to maintain: water + mild soap are enough. Rinse after a sea bath. Dry with a soft cloth. Avoid solvents and alcohol.Frequently Asked QuestionsDoes rubber yellow?Silicone can yellow over time and with UV exposure. Quality FKM and vulcanized rubber do not yellow.Can you swim with a rubber strap?Yes, that is precisely its primary purpose. Rinse with fresh water after each swim in the sea or pool.Does a rubber strap smell bad?Quality rubber (FKM, vulcanized) does not emit any odor. Low-end silicones may have a chemical smell.Discover our rubber selection — free shipping from €80.