Strap for Constellation Master Chronometer 39 Stainless Steel / Sedna - Diamond / Silver / Bracelet

The lug width is 24 millimetres. It is measured with a digital calliper on the internal distance between the two spring bar lugs. This measurement is essential for purchasing compatible straps.

The black alligator strap represents the most elegant choice, creating a formal contrast with the warm coppery glow of the gold. A deep brown vegetable-tanned calf leather offers aesthetic warmth, while the grey shell cordovan is ideal for those seeking originality.

Position the watch with the case facing upward. Using a dedicated tool or a flat knife tip, gently push inward one of the spring bar lugs to release the strap. Repeat on the other side. Insert the new strap by aligning the lug and push the lugs until they click into position.

Yes, aftermarket straps with a 24mm lug width are fully compatible. Always verify that the lug width corresponds to your watch's 24 millimetres. Specialised brands such as milanostraps.it guarantee construction quality and finishes worthy of the Omega movement.

A high-quality alligator or calf strap, with vegetable tanning, generally lasts 3-5 years with daily use, developing a beautiful patina over time. Durability depends on exposure to sun, sweat and humidity. The Casati Milano 18-month warranty covers any manufacturing defects.