Strap for Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars

The lug width of the 123.55.27.20.05.004 model is 16mm. This measurement is crucial for compatibility with aftermarket straps. To verify it correctly, use a digital caliper and measure the internal distance between the two lugs, perpendicularly, excluding any case protrusion.

For a rose gold Constellation, alligator represents the classic choice: the natural texture of the scales captures light and complements the chromatic harmony of gold. Recommended colours are medium brown, dark burgundy or black. Alternatively, shell cordovan offers artisanal elegance with the ability to develop a mirrored patina over time, emphasizing the case material.

Strap replacement requires specific tools: a spring bar tool to extract the elastic pins from the lugs. Position the watch face-down on a soft surface, insert the tool's pin into the small hole in the lug to compress the spring, then slide the pin out. Repeat on the opposite side, remove the old strap and insert the new one following the reverse procedure. It is advisable to entrust the operation to a professional to avoid damage to the rose gold lugs.

Yes, aftermarket straps compatible with 16mm lug width are numerous and available online. On milanostraps.it you will find a wide selection of straps ready for shipment, customizable in size, initials and stitching thread colour. For a bespoke experience, the Casati Milano atelier creates made-to-measure straps with personalized leather selection and 18-month warranty.

The lifespan of a leather strap depends on the intensity of use and construction quality. An artisanal alligator or shell cordovan strap can last 3-5 years with moderate use and regular maintenance (cleaning, drying after sweat, periodic rest). Vegetable-tanned calf tends to shrink slightly in the first year with humidity exposure, then stabilizes. To extend the life of the strap, avoid prolonged direct sunlight exposure, chlorinated water and keep the strap dry.