Strap for Constellation Co-Axial 35 Red Gold / Silver

The lug width of the Omega Constellation 123.50.35.20.02.001 is exactly 20mm. This dimension is measured from the inner edge of one lug to the inner edge of the opposite lug. With a case diameter of 35mm, the 20mm represents the design proportion established by Omega for this specific model, ensuring aesthetic balance and optimal structural functionality.

For an Omega Constellation in rose gold, black or brown alligator represents the noblest choice: the natural grain texture dialogues perfectly with the warmth of gold. Shell cordovan with vegetable tanning is a contemplatively superior alternative, as it ages magnificently, developing burgundy to mahogany hues. Smooth calfskin offers elegant discretion, while an FKM rubber strap transforms the same watch into a more versatile daily instrument.

To change the strap you need a spring bar tool and a stable, well-lit work surface. Position the watch with the strap facing upward, locate the small metal springs (spring bars) at the sides of each lug, gently press with the spring bar tool to retract them, remove the used strap and insert the new one until it clicks into place. For a safe operation without risk of scratching the rose gold case, we recommend service at Casati Milano.

All straps with a 20mm lug width are theoretically compatible with the 123.50.35.20.02.001, but optimal compatibility depends on the geometry of the Omega lugs. A generic 20mm strap may require slight customization in the attachment profile to fit perfectly with the shape of the integrated lugs. Milano Straps in the 20mm size are made with attention to Omega specifications and offer precise fit. For a fully bespoke solution, Casati Milano measures directly on your watch.

A high-quality natural leather strap, such as alligator or shell cordovan with vegetable tanning, has an average lifespan of 3-5 years with daily wear. Longevity depends on exposure to moisture, perspiration and conservative care (drying after rain, occasionally applying a specific balm). Shell cordovan, thanks to its superior density, tends to last longer. An 18-month warranty covers manufacturing defects; natural leather wear is part of the patination and aging process that makes each artisanal strap unique.