Strap for Royal KonTiki Chronograph Full Black

The lug width of the Eterna Adventure 7755.43.40.1289 is 20mm. This measurement refers to the space between the strap attachment pins. When ordering a replacement strap, always verify that it is specifically sized for this measurement to ensure perfect fit and optimal security.

For the Eterna Adventure 7755.43.40.1289, we recommend a brown alligator or vegetable-tanned calf leather for formal and elegant contexts, maintaining coherence with the model's sportive-elegant character. If you prefer greater daily practicality, a NATO strap in military tones or a vulcanised rubber strap offers versatility without aesthetic compromise.

Strap replacement requires a specific tool (spring bar removal tool) to extract the attachment pins from the case lugs. Position the watch on a stable support, gently push the pin inward, extract it carefully and repeat for the other side. Insert the new strap by aligning the holes with the pins and press until you feel the attachment click. If you lack experience, entrust the task to a specialised service centre.

A generic 20mm strap may be technically compatible, but we recommend always verifying the precise specifications of both the strap and case. Minor variations in pin width or lug bore conformation can affect fit quality. Bespoke artisanal straps made specifically for this measurement guarantee superior precision and durability.

Leather strap durability depends on material quality and frequency of use. A quality artisanal alligator or calf leather typically lasts 3-5 years with daily wear, whilst with occasional use it can last 7-8 years. Vegetable-tanned leather develops a natural patina over time, improving appearance. Regular maintenance and protection from humidity significantly extend strap lifespan.