Strap for Constellation Quartz 24 Stainless Steel / Red Gold / Brown MOP

The lug width of the Constellation 123.20.24.60.57.005 is exactly 18 millimetres. This measurement is calibrated to the geometry of the 24mm case and must be observed rigorously to ensure mechanical compatibility and correct optical proportions. Always verify the distance between the lugs at the point of maximum internal width before purchasing an aftermarket strap.

For the Constellation 123.20.24.60.57.005 in rose gold and steel with a mother-of-pearl dial, we recommend alligator in white, cream satin or cognac brown. Alligator preserves elegance without visually competing with the luminescent dial. Vegetable-tanned calf is a more casual yet authentic choice, provided it features a fine grain (box-calf). Avoid rubber and vivid patterns that would disrupt the aesthetic balance.

The Omega Constellation uses spring bars to secure the strap to the lugs. With a spring bar tool (a tool featuring a nylon-tipped head), gently press the spring from the lower side to lift the curved end of the fastener. Remove the spring bar and previous strap. Insert the new strap aligning it with the holes, then slide the spring bar—ensuring the spring clicks into position. Do not force: the movement should be fluid.

Yes. Any strap with 18mm lug width is mechanically compatible. Milano Straps offers a selection of 18mm straps in alligator, calf and vegetable-tanned leather, ready to ship and customizable. For a bespoke experience, the atelier Casati Milano creates made-to-order straps with direct leather selection and sartorial finishing, guaranteed for 18 months.

A quality leather strap, such as alligator or vegetable-tanned calf, maintains structural integrity for 3–5 years of daily wear, developing a patina that increases aesthetic value. Longevity depends on exposure to sunlight, moisture and perspiration. A strap worn 2–3 times per week can last 7–10 years. Maintenance (regular cleaning, drying, occasional conditioning) significantly extends longevity.