Strap for Defy A3691 Revival

The Zenith Revival 03.A3642.670/3691.M3642 is equipped with an 18-millimetre lug width. This measurement refers to the internal distance between the articulation pins. To measure accurately, use a digital calliper or metal ruler positioned from the inner wall to the opposite inner wall of the lug. This width ensures harmonious proportions relative to the 37mm case diameter.

The ideal strap depends on your intended use case. For formal and business contexts, cognac alligator or vintage calf leather with vegetable tanning offer uncompromised elegance. For versatile daily wear, Japanese shell cordovan guarantees durability and natural lustre. For aquatic or summer activities, FKM vulcanised rubber ensures superior grip and multi-year durability. All these materials are available in 18mm configuration compatible with the Revival's lugs.

Changing the strap on the Zenith Revival 03.A3642.670/3691.M3642 requires two tools: a spring bar removal tool and an appropriate screwdriver. Use the spring bar tool to extend the lug and extract the articulation pins from the existing strap. Once the pins are removed, you can insert the new strap and re-secure the pins inside. We recommend performing this operation on a soft, flat surface to prevent scratches on the case.

Yes, you can use aftermarket straps since the Zenith Revival 03.A3642.670/3691.M3642 features standard 18-millimetre lugs. Ensure the strap has been specifically constructed for this lug width. The straps available on milanostraps.it are all tested for compatibility and build quality, with customisation options in leather, rubber, and technical fabric.

The lifespan of a leather strap depends on the material and usage. A vegetable-tanned calf leather, worn daily, offers durability of 3–5 years before requiring replacement. Japanese shell cordovan extends this lifespan to 7–10 years thanks to its dense fibrous structure. Vulcanised rubber guarantees 5–8 years without visible degradation. All these straps, crafted by Casati Milano atelier, benefit from an 18-month warranty.