Strap for Legend Diver Date Stainless Steel / Blue

The lug width of the Longines Legend Diver L3.774.4.90.2 is 22 millimetres. This measurement corresponds to the distance between the two vertical pins that connect the case to the lugs. To verify it accurately, use a digital calliper positioned between the two lugs: the measurement must be exact, as even a 0.5mm deviation would result in an incompatible or unstable strap.

The choice of strap depends on the context of use. For those seeking elegance and natural patina, we recommend a leather in vegetable tannin from Tuscany, in dark tobacco or antique chestnut shades. For aquatic environments and diving, a vulcanised rubber strap guarantees maximum water resistance. A versatile solution is regenerated leather or Cordura textile, which balance aesthetics and practicality. A NATO strap in twill with a stainless steel deployante imparts military austerity. Every material must respect the 22mm lug width.

To change the strap, use a spring bar tool (a specialised instrument with two curved ends). Position the tool under the metal pin (spring bar) that connects the strap to the case, pushing gently inward to release the spring tension. When the pin retracts, remove the old strap. Then insert the new strap, ensuring that the pin engages perfectly with both holes. Repeat the operation on the other side. Always verify that the strap is securely locked before wearing the watch.

Yes, it is possible to use aftermarket straps of quality provided they respect the 22mm lug width. Specialised brands such as Hirsch, Barenia, Cordura and artisanal Tuscan manufacturers produce compatible straps and often superior finishes and longevity compared to originals. Ensure the strap is made from vegetable tanned leather or technical rubber if you anticipate diving. A stainless steel 316L deployante represents the best pairing for a dive watch of this category.

The lifespan of a leather strap varies according to material and use. A strap in Tuscan vegetable tannin, with proper maintenance (periodic hydration and protection from excessive moisture), can last between 3 and 5 years under ordinary conditions. If frequently exposed to salt water, the lifespan reduces to 18–24 months. Vulcanised rubber offers superior resistance in humid environments, with a longevity that can exceed 7 years if properly maintained (regular rinsing and drying). Cordura textile, if treated correctly, also exceeds 5 years of daily use.