Strap for Oris Big Crown 01 745 7688 4061

The Oris Big Crown 01 745 7688 4061 features a lug width of 22 millimetres. This is the distance between the two attachment points of the strap on the case. To verify this measurement with precision, use a digital calliper and measure the space between the lugs: the value must correspond exactly to 22mm. This size is standard for many 44mm aviation watches and ensures complete compatibility with all 22mm artisanal straps in our catalogue.

The choice depends on your style and intended use. For maximum elegance and refinement, we recommend an alligator in medium brown or shell cordovan, which balances the robustness of the steel case with sophisticated patina. For those seeking versatility and natural ageing, a vegetable-tanned leather in warm hues—burnt orange, hazelnut—offers authentic aviation character. NATO straps in canvas or leather remain the most historically faithful choice for the Big Crown: practical and durable. For contemporary and athletic use, a black rubber strap provides complete water resistance and effortless cleaning.

Strap replacement is a straightforward operation requiring a spring bar tool. Position your watch on a soft, stable surface. Insert the thin tip of the spring bar tool into the small hole adjacent to the lug on the inner side of the case, gently lift to compress the internal spring mechanism, and slide the pin outward. Repeat the procedure on the other lug. Reverse the process to install the new 22mm strap, ensuring the pins are fully secured and the strap is not twisted. The operation takes approximately two minutes per side.

Yes, entirely. All artisanal straps with 22mm lug width are compatible with this model, provided they lack integrated buckles that would prevent mounting. Milano Straps straps are specifically selected for this compatibility: they utilise standard spring bar pins and classical construction. Artisanal quality guarantees impeccable finishing at the ends, no internal sharp edges, and precise stitching that will not scratch the case. Every 22mm strap in our catalogue is tested for seamless installation on this model.

Durability varies significantly depending on material and usage patterns. Quality alligator typically lasts 5–8 years under moderate daily wear; shell cordovan can exceed 10 years thanks to superior fibre density. Vegetable-tanned leather, subject to natural ageing, maintains structural integrity for 4–6 years with regular use, developing increasingly beautiful patina. Canvas NATO straps endure 10–15 years, practically indefinite with proper care. Rubber is the most durable: 8–12 years or beyond, without aesthetic degradation. All these timeframes extend considerably if the watch is not worn daily and the strap is protected from excessive moisture and direct sunlight.