Strap for Ingenieur Automatic 40 Stainless Steel / Green

The lug width is 14mm. This standard is specific to the IW3289-08 model and represents the distance between the fixed terminals of the case where the strap attaches. It is essential to verify this measurement before purchasing an aftermarket strap to ensure complete compatibility and absence of play.

For the prestige of the Ingenieur we recommend cognac brown alligator or vegetable-tanned black calf. Alligator enhances the Genta geometry with orderly texture, while calf develops a natural patina that mirrors that of the steel case. For sports use, an FKM rubber or canvas NATO strap offer superior resistance while maintaining stylistic coherence.

Specific tools are required: a spring bar tool and a clean work surface. Position the tool in the appropriate side holes of the lug terminals, gently lift the spring bar and slide out the old strap. Repeat the operation to insert the new strap, ensuring that the spring bar is perfectly seated in both slots. Those who prefer can entrust the operation to a professional watchmaker.

Yes, provided it is specifically sized for 14mm lug width and the terminals are designed for Genta cases with straight holes (not curved). Milano Straps are constructed with precise tolerances to ensure perfect fit without lateral play, respecting the aesthetic integrity of the watch.

A quality alligator or calf strap, with ordinary use and regular maintenance (gentle cleaning, drying after moisture), lasts 3-5 years. <a href="/pages/termine-glossario/concia-vegetale">Vegetable tanning</a> tends to last longer than modern chemical methods. Natural aging develops patina that is part of the beauty; structural failure of the material indicates when replacement is necessary. Milano Straps offers an 18-month warranty on customized straps.