Strap for Constellation Co-Axial 35 Red Gold / Diamond / Diamond Supernova

The Omega Constellation 123.55.35.20.55.002 has a lug width of 20 millimetres. This measurement is determined by the distance between the shoulders of the 35mm case and is essential for selecting a compatible strap. Incorrect measurements would result in constructive misalignments and functional instability of the strap.

For a rose gold 18k Constellation, alligator leather represents the ideal choice: the regular texture of Nile reptiles dialogues visually with the characteristic claws, whilst the natural lustre amplifies the reflections of the gold. Shell cordovan offers a durable alternative with a patina that evolves over time. Vegetable-tanned calf leather represents a compromise between elegance and sustainability.

Strap replacement requires extraction of the spring bar from the seats located at the case extremities. Using a specific tool (spring bar tool), gentle pressure is applied to release the retention mechanism. Subsequently, the strap must be aligned with the case shoulders and the spring bar reinserted until the locking click is heard. Incorrect operations risk scratching the case: we recommend using experienced jewellers.

Yes, provided the strap is 20mm wide and compatible. Milano Straps offers customizable handcrafted straps online in different sizes, initials and stitching thread options. For a bespoke experience, the Casati Milano atelier creates made-to-measure straps with personal leather selection and an 18-month warranty, with updates via WhatsApp.

The lifespan of a leather strap depends on the material and usage. Shell cordovan, with superior molecular density, can last 8-12 years with proper maintenance. Alligator maintains optimal functionality for 6-10 years. Vegetable-tanned calf leather ranges between 5-8 years. Factors such as humidity, sun exposure and frequency of use significantly influence longevity.