Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Sedna Gold / MOP / Diamond

The lug width of the Omega Constellation 131.55.29.20.55.001 is 18mm. This measurement represents the distance between the case lugs that fit into the ends of the strap. You can verify it by measuring the two pins of the original strap with a digital caliper.

Alligator in brown or mahogany tones represents the optimal choice for this model, thanks to its natural chromatic compatibility with Sedna Gold. Burgundy shell cordovan constitutes an equally prestigious alternative. For those seeking versatility, vegetable-tanned calf offers elegance without sacrificing sustainability and authentic patina development.

Strap replacement requires the use of a spring bar tool. Gently grasp one end of the spring bar, press downward and slide the strap out of the lug. Insert the new strap by aligning the holes with the ends of the spring bars, then reposition the spring bar until it clicks into place. If you do not have the tools, consult a professional watchmaker to avoid damage.

Yes, any 18mm strap is compatible with this model. Omega has standardized this measurement precisely to facilitate access to quality alternative solutions. It is essential to verify that the strap is constructed with two pins of the correct length (generally 1.5-1.8mm protrusion) to ensure solidity and safety.

The lifespan of a leather strap depends on use, care and quality of craftsmanship. Premium alligator and shell cordovan guarantee 4-7 years of daily wear before requiring replacement. Vegetable-tanned leather tends to age more rapidly in appearance but maintains structural integrity. Casati Milano guarantees 18 months on bespoke straps, covering any manufacturing defects.