Strap for Artelier Complication 40.5 Stainless Steel / Black

The lug width of this model is precisely 21mm. This dimension reflects the proportional standard for a 40.50mm diameter case, ensuring optimal visual balance. Any strap that does not respect this width (e.g., 20mm or 22mm) would introduce undesirable mechanical play and aesthetic compromise. To measure correctly, position a measuring tape perpendicularly between the two internal shoulders of the case.

For a watch of this minimalist philosophy, we recommend a vegetable-tanned alligator strap, preferably in black or dark chocolate brown, as the natural grain of the leather complements the austere aesthetic of the steel case. Shell cordovan represents the alternative for those seeking structural rigidity and luminous patina over time. A matte vegetable-tanned calf leather strap offers daily versatility, whilst a natural canvas NATO creates intentional and modern contrast without betraying the watch's minimalist identity.

The process requires a dedicated spring bar tool to remove the pins connecting the case to the strap. Position the tool under the pin and apply gentle downward pressure until the spring releases, then extract the pin from its seat. Repeat for the second pin. Reverse the procedure to install the new strap, ensuring the pins are correctly aligned and the strap is not twisted. For those preferring to avoid risk, Casati Milano offers strap replacement service by appointment at the atelier.

Yes, any artisanal 21mm strap is mechanically compatible. Aesthetic compatibility, however, requires attention: the strap must respect a thickness of 3.5–4.5mm and the buckle structure should harmonise with the case's minimalist aesthetics. On milanostraps.it you will find a curated selection of 21mm straps in alligator, calf leather, shell cordovan and NATO—all tested for compatibility on Oris models of this class.

A superior-quality strap with vegetable tanning, subjected to reasonable use and periodic maintenance (cleaning with a damp cloth, annual conditioning with beeswax), lasts on average 5–7 years before requiring replacement. Factors such as humid climate, direct sun exposure and perspiration accelerate ageing. The natural patina that develops over time—slight discoloration, minor creasing—is a desirable characteristic and not a sign of defect. A well-maintained shell cordovan strap can last 10+ years thanks to the intrinsic density of the leather.