The rubber strap has established itself as the refined companion for sports and dive watches. In Singapore's tropical climate, rubber is often the most practical daily choice. But not all rubber is created equal. FKM, vulcanised, silicone — here is how to curate the right one.
Types of Rubber
FKM (Fluoroelastomer)
The pinnacle of horological rubber. Resistant to UV, oils, heat, and chemicals. Silky touch that never sticks to skin. This is the material used by the most sophisticated watch houses (Rolex Oysterflex, Hublot). Explore our FKM rubber straps.
Vulcanised Rubber
Natural rubber treated through vulcanisation for enhanced resilience. More supple than FKM with an excellent quality-to-price ratio. This is the material behind the celebrated Rubber B and Tropic straps.
Silicone
The most affordable option but also the least refined. Tends to attract dust and can feel sticky in warm weather. Acceptable at entry level but best avoided on premium timepieces.
Leather-Rubber Hybrid
The best of both worlds: leather aesthetics on the exterior, rubber comfort and resistance against the skin. See our hybrid straps.
FKM vs Silicone: The Real Differences
- Touch: FKM is silky and dry; silicone can feel tacky
- Durability: FKM lasts 5–10 years; silicone 1–3 years
- UV resistance: FKM does not yellow; silicone may discolour
- Price: FKM $80–250; silicone $15–50
Which Rubber for Which Watch?
- Dive watches: FKM or vulcanised — total water resistance
- Sport chronographs: FKM for a premium appearance
- Daily wear: Leather-rubber hybrid for versatility
- Luxury timepieces: Rubber B or FKM alligator for Rolex, Patek, AP
Frequently Asked Questions
Does rubber turn yellow over time?
Silicone can yellow with prolonged UV exposure. Quality FKM and vulcanised rubber do not yellow and maintain their appearance for years.
Can I swim with a rubber strap?
Absolutely — that is precisely what rubber straps are designed for. Rinse with fresh water after every swim in saltwater or chlorinated pools.
Do rubber straps develop an odour?
Quality rubber (FKM, vulcanised) produces no odour whatsoever. Budget silicone may have a chemical smell when new that typically dissipates within a few days.
Explore our rubber strap selection — Free shipping in Singapore.