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

The Omega Constellation 123.55.27.20.55.005 has a lug width of 18mm. This width is specific to the proportions of the 27mm case and is determined by the distance between the strap attachment pins.

Vegetable-tanned alligator is the natural choice for this model. The fine texture of the scales dialogues elegantly with the rose gold case. Dark brown or cognac calf also offers sophisticated and formal aesthetics, while burgundy creates a more articulated chromatic contrast.

The change requires the use of a tool to remove the attachment pins (stems). Position the watch on a soft pad, locate the holes on the side pins of the case, and use a remover to gently push them inward until detached. Insert the new strap by aligning the holes of the lugs to the pins, then snap the pins into place.

Yes, all straps with an 18mm lug width are compatible with this model. Milano Straps offers a wide selection of artisanal straps in this size, customizable for length and details, and guaranteed for 18 months if made at the Casati Milano atelier.

Durability depends on usage and material. An alligator or calf strap with vegetable tanning, used moderately (3-4 days per week), maintains structural integrity for 3-5 years. The natural aging of leather—development of patina and micro-cracks—is an aesthetic process, not deterioration. Rubber or fabric straps have greater resistance, up to 7-10 years with daily use.