Strap for Legend Diver Date Stainless Steel / Black / Strap

The lug width of the Longines Legend Diver L3.674.4.50.0 is 22mm. This measurement refers to the distance between the inner sides of the metal lugs on the case where the strap attaches. Verifying this measurement before ordering an aftermarket strap is essential, as even minor variations will result in improper fitting. Our straps are available in this exact measurement and are ready for immediate shipment with full customisation options.

For the Legend Diver, we recommend straps that respect the tool-watch character of the timepiece. A Tuscan leather strap with vegetable tanning (Havana or dark brown) strikes an ideal aesthetic balance between the robustness of the steel case and controlled sophistication. Alternatively, genuine alligator leather imparts formal elegance without betraying the model's technical origins. For frequent water use, we suggest rubber or NATO straps, which provide practicality and resistance to marine environments.

Changing the strap on the Legend Diver requires a small spring bar tool. Position the tool's end underneath the metal lug that secures the strap to the case, then apply gentle inward pressure to compress the spring. The lug will disengage, allowing strap removal. Align the holes of the new strap with the case lugs and press firmly until you hear a click. Verify that the strap is securely fastened before wearing the watch.

Yes, absolutely. High-quality aftermarket straps are fully compatible with the original strap, provided they meet the 22mm lug width specification. Our handcrafted straps are made from premium materials including genuine alligator, vegetable-tanned calf leather, and shell cordovan, offering superior colour and tactile qualities compared to standard factory straps. An 18-month warranty on every strap guarantees durability over time.

Leather strap longevity depends on usage intensity, climate conditions, and material selection. Tuscan calf leather with vegetable tanning typically lasts 3–5 years with moderate daily wear. Alligator, thanks to its fibrous structure, offers 5–7 years of service. Shell cordovan is the most durable material, with a useful life potentially exceeding 7–10 years. Frequent exposure to water and sunlight accelerates ageing. We recommend rotating multiple straps and conditioning the leather periodically to maximise lifespan.