Strap for Oris Classic 01 733 7594 4391

The lug width is 20 millimetres. This measurement is standard for the Oris Classic family and represents the internal distance between the two lugs on the case. When purchasing a replacement strap, ensure that the passant width precisely matches 20 millimetres to guarantee proper fit without slack or misalignment.

Selection depends on usage and context. For formal and business environments, we recommend vegetable-tanned leather or alligator: these materials develop an elegant patina that mirrors the natural ageing of the steel case. For sporting applications and humid conditions, NATO straps in high-density polyamide or vulcanised rubber offer practicality and durability. Shell cordovan represents the ideal compromise between elegance and structural resilience.

The procedure is straightforward and requires no specialist tools. Position the watch on a soft surface to prevent scratches. Locate the lugs (lateral pins that anchor the strap): using a dedicated spring bar tool or a thin, rounded implement, gently press the pin from outside towards the inside, pushing the strap towards the opposite side. Repeat for both lugs. Once released, slide the new strap into alignment with the lug holes and reinsert the pins until they click into place.

Yes, absolutely. Aftermarket straps of quality construction guarantee full compatibility with the 20-millimetre lug width, maintaining identical dimensions to original straps. Many artisans produce 20mm straps in superior materials: Tuscan vegetable-tanned leather, African alligator, shell cordovan. Using aftermarket straps allows you to personalise your watch according to your style whilst maintaining construction integrity and aesthetic authenticity.

Lifespan depends on material composition and usage frequency. A quality vegetable-tanned leather strap offers 3–5 years of daily wear before requiring replacement, though the patina continues to improve throughout this period. Shell cordovan, owing to denser biological structure, can last 5–7 years whilst maintaining structural rigidity. Alligator, with more compact texture, can reach 8 years of service. Variables such as humidity exposure, direct sunlight and frequency of use influence longevity. A NATO strap or rubber equivalent, by comparison, lasts indefinitely with proper maintenance.