Strap for Constellation Co-Axial 27 Brushed Stainless Steel / Red Gold / Diamond / Brown MOP

The lug width of the Constellation 123.25.27.20.57.001 is 16mm. This width was calculated during the design phase to maintain balanced proportions between the 27mm case and the integrated bracelet. The measurement should be taken from the center of one lug to the center of the other, measuring the distance between the two metal attachments where the strap connects to the case.

The choice depends on your personal style and intended use. For formal elegance, black or dark brown alligator creates continuity with the integrated bracelet tradition. To enhance the mother-of-pearl dial, we recommend calf leather in dove tones, natural pearl, or shell cordovan. Each material evolves over time: leather develops a patina that enriches the character of the watch, while synthetic materials maintain aesthetic stability. The Casati Milano atelier can guide you in your choice based on direct material perception.

The Constellation 123.25.27.20.57.201 features a bracelet soldered to the case, unlike many Constellation models with traditional through-lug attachments. Strap replacement requires removing the final bracelet link through the replacement of the connecting hinge, an operation that demands specific tools and expertise. We recommend contacting an authorized Omega service center or a specialized craftsman, such as Casati Milano, which operates by appointment for interventions of this complexity.

Yes. The Constellation has been available in various versions, some with through-lugs and others with an integrated bracelet. If your model features compatible through-lugs, you can use any quality 16mm strap. Milano Straps offers online a collection of ready-to-ship straps in this size, with customization options in leather, stitching, and initials. For models with a soldered bracelet, the solution requires the intervention of a specialized craftsman.

A quality leather strap—alligator, calf, shell cordovan—typically lasts 2 to 5 years of daily use, depending on care and exposure to moisture, sun, and friction. Shell cordovan, thanks to its natural density, tends to last longer. The patina that develops is part of the beauty of natural leather: the strap does not "wear out," but evolves. The Casati Milano atelier offers an 18-month warranty on custom straps and can perform repairs or replacements over time.