Strap for De Ville Byzantium Co-Axial 33.4 Co-Axial Stainless Steel / Blue MOP

The Omega De Ville 7805.75.34 has a lug width of 18mm. This dimension is measured at the internal mounting seat of the case, between the two lateral anchor points. It is essential to verify this measurement before purchasing an aftermarket strap, as straps that are narrower or wider will not fit correctly.

For the De Ville 7805.75.34 in steel, alligator represents the aesthetic pinnacle: the natural grain dialogues perfectly with the dial geometry and the fineness of the case. Secondly, vegetable-tanned calf offers versatility and longevity, developing a characteristic patina over time. For those seeking practicality, cotton-polyester NATO maintains formal elegance without compromise, provided it is in neutral tones.

The strap is replaced by removing the two spring bars positioned at the extremities of the case. These bars have a small internal spring: using a dedicated tool (strap tool or precision instrument), compress the bar and extract it from the lateral seats. Once free, the old strap slides away and the new one is positioned in the same holes. The operation requires delicacy to avoid scratching the case; if you lack experience, it is advisable to entrust the task to a professional watchmaker.

Any strap with an 18mm lug width is theoretically compatible with the 7805.75.34. However, true aesthetic compatibility depends on proportions: straps that are too thick or too thin alter the visual balance of the case. Artisans at Milano Straps suggest straps specifically designed for dress watches of 33-36mm, where the leather thickness and buckle width respect the stylistic grammar of the model.

A high-quality artisanal alligator strap, with proper maintenance (protection from excessive moisture, occasional hydration with specific oils), lasts 5-8 years. Vegetable-tanned calf, being thinner, typically lasts 3-5 years before showing significant signs of wear at the edges. Factors such as frequency of use, personal perspiration, and climate considerably influence wear. The 18-month warranty provided by Casati Milano covers manufacturing defects and seams, but not the natural wear of leather.