Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Yellow Gold / Aventurine / Diamond

The Omega Constellation 131.55.29.20.53.002 features a lug width of 18mm, measured between the centers of the attachment holes to the case. This dimension is standard for 29mm models and is compatible with all 18mm handcrafted straps in our catalog.

For the Constellation in yellow gold, we recommend dark brown or cognac-dyed alligator, which enhances the warmth of the metal without overwhelming the proportions. The elegant alternative is vegetable-tanned calf leather, which develops a natural patina over time. For sporty options, black vulcanized rubber is compatible and versatile.

Strap replacement requires the use of a specialized spring bar tool. Position the tool under the spring bar, apply light pressure to release the mechanism, and gently extract. Repeat on the other side. Insert the new strap by aligning one end first, then snap the other end into place with the tool. If unsure, we recommend strap replacement by a certified watchmaker.

Yes, all straps with 18mm lug width are compatible with your Constellation. MilanoStraps offers a wide selection of handcrafted straps in fine leather (alligator, calf, shell cordovan) customizable in color, width, and deployant buckle type, all ready to ship.

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 3-5 years with daily use, provided regular maintenance: avoid prolonged moisture, do not expose to direct sunlight for extended periods, clean with a soft cloth. Our straps include an 18-month warranty and support for extending useful life through reconditioning.