Strap for Constellation Co‑Axial Master Chronometer 27 Small Seconds Stainless Red Gold / Diamond / MOP

The lug width is 17mm. This dimension is specific to small diameter Constellation models (27mm). The lug width is measured from lug to lug of the case, in a straight line parallel to the watch's axis. It is essential to verify this measurement before purchasing an aftermarket strap.

For this rose gold model, we recommend alligator straps in dark brown, cognac, or burgundy tones: the aesthetic contrast with the metal is ideal. Alternatively, Italian calf leather with fine grain and vegetable tanning offers a natural patina that evolves over time. Shell cordovan in bordeaux creates a particularly refined pairing.

The change is made via the lug pins (lugs pins), small spindles that connect the strap to the case. Using a specific tool (spring bar tool or lug tool), remove the pins from the lower part of the lug. Extract the old strap, align the shoulders of the new strap, and reinsert the pins. It is advisable to entrust this to a professional if you do not have experience, especially on valuable watches.

Yes. All straps with a 17mm lug width are compatible with this model. We offer a collection of <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-17mm">17mm straps</a> in various materials, finishes, and customizations. The Casati Milano atelier also creates bespoke straps made to measure, allowing you to choose leather, color, and details.

The lifespan depends on the quality of the leather and use. A high-quality alligator or shell cordovan strap lasts 3-5 years under normal conditions, with regular maintenance (dry after humidity exposure, protect from liquids). Vegetable-tanned calf leather has similar durability but develops a more pronounced patina. Valuable watches like this deserve rotation among multiple straps to extend the life of each one.