Strap for KonTiki Four-Hands Black / Strap

The lug width of the Eterna Adventure 1598.41.41.1305 is 20mm. This measurement refers to the strap width, not the case diameter. To verify, measure the distance between the two lugs (case ears) of the watch: the compatible strap must be 20mm wide. Do not confuse with the case diameter, which is 42mm.

The ideal strap depends on your intended use and aesthetic preferences. For formal contexts, an alligator or vegetable-tanned calf leather strap develops natural patina over time. For daily versatility, a robust nylon NATO strap allows frequent changes without wear. For outdoor activities, high-quality technical rubber provides comfort and durability. The Eterna Adventure accommodates all these materials due to its versatile design philosophy.

Position the watch with the lugs facing towards you. Locate the spring bars (metal pins securing the strap to the lugs). Using a spring bar tool (bifurcated professional tool), gently push the pin from below to eject it from the lug hole. Remove the old strap. Insert the new strap, aligning the holes with the lugs, and reinsert the pin. Verify secure attachment on both sides.

Yes, any strap with a 20mm lug width is compatible with the 1598.41.41.1305. Quality aftermarket straps, such as alligator, calf leather, or vegetable-tanned options, offer superior aesthetic versatility compared to the integrated original bracelet. Always verify the 20mm width before purchase. Specialised brands offer artisanal leather solutions that maintain coherence with the Eterna's constructive dignity.

A high-quality leather strap, such as alligator or vegetable-tanned calf, typically lasts 5-7 years with normal daily wear. Longevity depends on frequency of use, climatic conditions, and maintenance. Prolonged exposure to moisture and perspiration reduces lifespan. A technical rubber strap lasts 3-4 years. To extend durability, avoid excessive wetting and occasionally apply conditioner for vegetable-tanned leather. Replacement cost remains modest relative to aesthetic and functional benefits.