Strap for Constellation Quartz 24 Brushed Stainless Steel / Yellow Gold / Champagne MOP

The lug width of the Omega Constellation 123.20.24.60.57.001 is 18 millimeters. This measurement is specific to the 24 mm case model and is crucial for aesthetic harmony between the case and the strap. To measure it correctly, position a rigid ruler perpendicular to the case, from lug to lug, excluding any part of the movement.

To enhance the two-tone architecture (yellow gold and steel) and the mother-of-pearl dial, we recommend alligator leather in cognac, burgundy, or ebony tones. Alternatively, shell cordovan offers a patina that evolves over time, while vegetable-tanned calf leather guarantees durability with a more casual-elegant aesthetic. Avoid sporty materials such as NATO or rubber, which would undermine the refined character of the timepiece.

The strap is changed using a spring bar removal tool. Gently insert the tip of the tool into the lateral holes of the case, beneath the lugs, and press lightly to flex the spring bars. Once extracted, remove the old strap and insert the new one by aligning its holes with the spring bars. If you are unsure of the procedure, entrust it to a professional: an error could scratch the case.

Yes, absolutely. A quality aftermarket strap in 18 mm is completely compatible. What matters is choosing a leather and tone that complements the yellow gold and steel two-tone: cognac or burgundy alligator, shell cordovan, or vegetable-tanned calf are excellent options. Avoid generic materials that would compromise the preciousness of the original timepiece.

Durability depends on the material, usage, and care. A premium alligator or shell cordovan strap lasts 5–7 years with daily wear, supported by occasional cleaning with a soft brush and applications of natural balm. Vegetable-tanned calf leather tends to wear more quickly (3–5 years) as it is more porous. Constant friction on the wrist and exposure to moisture reduce longevity: keep the strap protected from sweat and rain when you are not wearing the watch.