Strap for Avigation Big Eye Titanium / Blue

The lug width of the Longines Heritage L2.816.1.93.2 is exactly 20 millimetres. This dimension corresponds to the distance between the two spring bar pins that secure the strap to the case. Accurate measurement of this distance is essential to ensure complete compatibility with aftermarket straps.

The best strap depends on intended use and aesthetic preference. For formal contexts, dark brown alligator or vegetable-tanned leather offer natural elegance. For daily wear and sports, nylon NATO or technical rubber are ideal. Shell cordovan is the choice for those seeking longevity and refined appearance over time.

Changing the strap requires a spring bar tool, a specialised implement that allows the elastic pins within the lugs to be compressed. Position the tool beneath the pin, apply gentle inward pressure, then slide the old strap out. Repeat with the new strap, ensuring the pins are properly seated within the case lugs.

Yes, any strap with a 20-millimetre lug width is compatible. Hundreds of options from specialised manufacturers are available online. Always verify the exact lug dimension before purchase to avoid error, and select a material suited to your intended use.

Leather strap longevity depends on tannage quality, daily use, and environmental conditions. A high-quality alligator strap can last 5 to 10 years with proper maintenance. Vegetable-tanned leather typically lasts 3 to 7 years. Exposure to perspiration, water, and humidity significantly reduces lifespan.