Aftermarket straps for Hublot Big Bang, Classic Fusion and King Power. Hublot straps aren’t sized like ordinary watch straps: the strap end is shaped to the case, and the size is given as two numbers, the width at the case and the width at the buckle (for example 25x19mm). Find your model below, then check the size printed on the underside of your current strap.

Strap sizes by Hublot model
Classic Fusion – 25x19mm: rubber & leather, rubber & alligator-pattern leather, nubuck & rubber
Big Bang – 25x19mm or 25x17mm: rubber 25x19mm, FKM rubber 25x17mm
Big Bang Spirit – model-specific: leather strap for Big Bang Spirit
King Power – 28mm or 29x19mm: rubber 28mm, rubber 29x19mm

Rubber or leather? Rubber is best for sport, swimming and summer. Rubber-lined leather gives a dressier look on the Classic Fusion while resisting sweat better than plain leather. For a full comparison, read our guide to choosing the perfect strap for your Hublot.

FAQ
Can you change a Hublot strap yourself? Yes. Many recent Big Bang models use Hublot’s “One Click” system: press the buttons at the lugs to release the strap, then click the new one in. Other models attach with screws or pins and need a small screwdriver or a watchmaker. See how to change a Hublot strap.

How do I find my Hublot strap size? Check the size printed on the underside of your current strap, or measure the strap width where it meets the case and at the buckle end in millimetres. Classic Fusion and many Big Bang straps are 25x19mm; King Power straps are wider.

Will the strap work with my original buckle? The strap must match the buckle-end width of your current strap, for example 19mm on a 25x19mm strap. Check the product page for what’s included before ordering.

Which strap material lasts longest? FKM rubber is the most durable choice for heat, water and UV. Silicone rubber is softer from day one, and leather looks the most formal but should be kept away from water.