Strap for Oris Big Crown 01 403 7799 4067

The lug width of the Oris Big Crown 01 403 7799 4067 is 20mm. This measurement is determined by the distance between the two lateral metal pins on the case that support the strap. A 20mm lug width requires a strap precisely calibrated to this size to fit correctly without gaps or instability on the wrist. You can measure the lug width yourself by placing a ruler between the two lateral support pins.

The best strap depends on your intended use and personal preference. For aviation authenticity and longevity, we recommend a vegetable-tanned leather strap from Florentine tanneries, which develops a unique patina over time. For subtle elegance, an alligator strap in brown or black is ideal. For daily practicality and durability, a NATO strap in cotton or cordura evokes the watch's historical aviation origins. Vulcanised rubber represents the most versatile solution for those seeking water resistance and maintenance-free wear.

The strap is changed by removing the metal pins (called spring bars) that connect the strap to the case. Using a spring bar tool with a flattened end, position yourself on one side of the case and press towards the centre to compress the internal spring of the pin, then extract the pin from its support. Repeat on the other side. Next, insert the pins into the new 20mm strap, ensuring they click securely into both case lugs. This operation requires delicacy to avoid scratching the case.

Yes, any aftermarket strap with a 20mm lug width is compatible with the Oris Big Crown 01 403 7799 4067, provided the width is exactly 20mm. Milano Straps offers a selection of 20mm straps in leather, alligator, NATO and rubber specifically calibrated for this size, guaranteeing perfect fit and longevity. It is essential to always verify that the declared size is 20mm; otherwise, the strap will not fit correctly to the case lugs.

A quality leather strap, made with supreme vegetable tanning such as those offered by Milano Straps, has an average lifespan of 3-5 years with daily wear and proper care. Factors such as humidity, frequency of wear, sun exposure and maintenance affect longevity. A well-seasoned and properly conditioned leather can last even longer. Vulcanised rubber, on the other hand, has a longer lifespan (5-7 years) but requires less maintenance. Alligator leather, being naturally more resistant, guarantees even longer lifespans if properly maintained.