Strap for Constellation Master Chronometer 36 Stainless Steel / Sedna / Silver / Bracelet

The lug width is 22mm. This measurement is standard in artisanal strap mapping and allows you to use any compatible 22mm strap. To verify the correct measurement, use a digital caliper on the internal section of the lugs: the distance should be between 21.8 and 22.2mm.

To enhance the two-tone contrast, we recommend Mississippi alligator in cognac tone, which amplifies the warmth of Sedna Gold. A sophisticated alternative is vegetable-tanned calf in dark brown, which develops a deep and irregular patina over time. For everyday wear, dark gray FKM rubber maintains elegance without compromise.

Grip the old strap near the lugs and pull downward with steady pressure: the lugs should slide out of the case. Insert the new strap by passing the tip through the upper lug first, then push gently inward until you hear the locking click. If the removable lug is equipped with an internal spring, ensure it snaps into the safety position.

Yes, absolutely. The 22mm lug width allows the use of quality artisanal aftermarket straps without compromising the integrity of the original design. Ensure the strap has a lug depth greater than 2.5mm to guarantee a secure fit. Alligator, vegetable-tanned calf, and shell cordovan straps are the ideal choices for this model.

Durability depends on the material and usage. Alligator lasts 4-6 years with daily wear. Vegetable-tanned calf, being more delicate, requires greater maintenance and lasts 3-5 years. Shell cordovan, due to fiber density, easily exceeds 7-10 years with proper storage. FKM rubber maintains elasticity for 6-8 years. The Casati Milano warranty on made-to-measure straps covers 18 months against manufacturing defects.