The Journal

Buying Guide · 4 min read

FKM Rubber Straps for Tissot PRX Collection

FKM rubber straps for Tissot PRX 40mm and 35mm. 12 colours, premium fluoroelastomer, waterproof and UV resistant. Purpose-built for integrated case design.

FKM Rubber Straps for Tissot PRX Collection

Purpose-built FKM rubber straps for the Tissot PRX. Available in 12 colours across 40mm and 35mm case sizes. Premium fluoroelastomer — waterproof, UV resistant, and built to last.

Why FKM for the PRX?

The Tissot PRX has an integrated bracelet design. Standard straps won't work — our FKM straps are moulded specifically for the PRX case, creating a seamless transition that looks factory-original.

PRX 40mm Collection

| Colour | Reference | Price | |---|---|---| | Black | PRX100 | £21.62 | | White | PRX101 | £21.62 | | Navy | PRX102 | £21.62 | | Blue | PRX103 | £21.62 | | Grey | PRX104 | £21.62 | | Green | PRX105 | £21.62 | | Red | PRX106 | £21.62 | | Orange | PRX107 | £21.62 |

PRX 35mm Collection

| Colour | Reference | Price | |---|---|---| | Black | PRX108 | £21.62 | | Navy | PRX109 | £21.62 | | Green | PRX110 | £21.62 | | Orange | PRX111 | £21.62 | | Light Blue | PRX112 | £21.62 | | White | PRX113 | £21.62 |

FKM vs Silicone

| Feature | FKM Rubber | Standard Silicone | |---|---|---| | Waterproof | ✅ Yes | ✅ Yes | | UV resistant | ✅ Yes | ❌ No (fades) | | Heat resistant | ✅ Yes | ❌ No (deforms) | | Durability | 5+ years | 1–2 years | | Hypoallergenic | ✅ Yes | ⚠️ Sometimes | | Price | Higher | Lower |

How to Install

  1. Remove existing bracelet using a spring bar tool
  2. Insert spring bars into the FKM strap
  3. Position between lugs (buckle end at 12 o'clock)
  4. Compress and seat each spring bar
  5. Confirm secure fit with a gentle tug

Read our full guide to PRX straps for detailed colour recommendations.

Free UK delivery on all FKM straps.

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