Strap for Avantgarde Date – Re-launch Edition Stainless Steel / Black / Buffalo

The lug width of the Lebois & Co Avantgarde 112.433 is 20 millimetres. This measurement is determined by measuring the distance between the lugs horizontally, in a section perpendicular to the case plane. It is essential to measure it at an uncompressed point to guarantee absolute compatibility with aftermarket straps. All our 20mm straps have been sized specifically for this lug width.

The choice depends on usage and desired aesthetics. For a formal and ageing-friendly look, we recommend alligator in vegetable tanning or French calf with natural patina, which develops rich texture over time. For a sporty and contemporary approach, NATO in dark grey or navy blue enhances the case geometry. FKM rubber is ideal if you seek absolute dimensional stability in humid environments. Visit our 20mm strap catalogue to discover available artisanal options.

Strap replacement is carried out by extracting the spring bars from the case lugs. Use a specialist tool to activate the retention mechanism by inserting it into the longitudinal hole in the spring bar. Once both bars are extracted, the old strap releases. Position the new strap's bars into the same holes and click until you hear the locking mechanism engage. If you do not possess the tool, we recommend consulting an expert to avoid damage to the lugs. Casati Milano offers personalised assistance by appointment.

Yes, provided the strap is specifically dimensioned for a 20mm lug width. Our artisanal straps have been crafted and tested to guarantee total compatibility with the 112.433, maintaining original visual proportions without compromise. We advise against universal straps of inferior quality, which tend to generate slippage on the lugs or accelerated spring bar oxidation. Our straps in alligator, calf, NATO and rubber are ready for dispatch and customisable according to your colour preferences.

Durability varies depending on material and usage. An alligator or calf strap with vegetable tanning, if properly maintained (protect from excessive moisture, clean with soft cloth), lasts on average 3–5 years with daily wear, developing a desirable patina. An industrial-tanned leather strap has a shorter lifespan of 18–30 months. FKM rubber offers superior dimensional stability, with durability up to 7–8 years. Textile NATO lasts longest, up to 10 years, but requires periodic cleaning. Strap replacement never compromises the case: it is a reversible and programmable intervention, allowing you to explore different aesthetic expressions over time.