Strap for Big Crown Complication Stainless Steel / Silver

The lug width (ansa measurement) of this model is 19.00 millimetres. This dimension represents the distance between the two spring bar holes on the case. It is advisable to always measure the exact width with a digital calliper before purchasing an aftermarket strap, as minor manufacturing tolerances can influence how the leather sits against the case.

The Big Crown performs optimally with natural leather straps: alligator with vegetable tanning for formal contexts, medium-grain calf for daily versatility, or shell cordovan for a premium solution. For humid environments or instrumental use, NATO webbing in Cordura or FKM rubber represent the most practical and functional choices.

The Oris Big Crown uses internal spring bars for strap attachment. A dedicated spring bar tool is required (available online or through jewellers). Insert the tool tip into the small hole of the bar, compress the internal spring, extract the bar and repeat on the other side. The operation takes a few minutes and does not require advanced technical skills.

Yes. Any strap with a 19.00 millimetre lug width is compatible with this model. Milano Straps offers a collection of handcrafted leather, NATO and rubber straps specifically sized for this dimension. Construction quality and finishing are comparable to or superior to Oris original solutions.

A quality natural leather strap (alligator, calf, shell cordovan) with regular maintenance lasts approximately 3-5 years with daily wear. Durability depends on exposure to moisture, perspiration and direct sunlight. A webbing or rubber strap lasts 2-3 years before replacement is necessary. Application of protective balms specifically formulated for leather significantly extends useful life.