Strap for Constellation Co-Axial 27 Brushed Stainless Steel / Yellow Gold / Diamond Bezel / Champagne Feather

The lug width is 18 millimetres. This measurement is the perpendicular space between the two case lugs. It is essential to measure it correctly from the inside of one lug to the other to select a compatible strap.

For the Omega Constellation 123.25.27.20.58.002, an alligator strap represents the most aesthetically coherent choice: the natural grain perfectly complements the two-tone case in yellow gold and steel. A valid alternative is vegetable-tanned calf leather, which develops an increasingly distinctive patina over time.

Strap replacement is performed using the spring bars positioned at the extremities of the case. Using a dedicated tool (spring bar tool), apply pressure inward on the attachment to release its spring, allowing removal of the previous strap and insertion of the new one. If inexperienced, the Casati Milano atelier offers strap change service by appointment.

Yes, all straps with an 18 millimetre attachment are compatible. Milano Straps offers a complete collection of handcrafted straps made in Italy in this size, selectable by material (alligator, calf, rubber) and colour, with further customisation options available.

A quality leather strap (alligator or vegetable-tanned calf) has an average lifespan of 4-6 years with daily wear. Duration depends on frequency of use and environmental conditions. Milano Straps guarantees 18 months for bespoke straps, but real longevity can considerably exceed this threshold, especially if subjected to periodic maintenance and stored in controlled conditions.