Strap for Constellation Quartz 24 Polished White Gold / Snow Supernova / Bracelet

The lug width of the Omega Constellation 123.55.24.60.55.012 is 20mm. This is the internal distance between the lugs of the case. Any strap for this model must have a nominal width of 20mm to fit perfectly into the lugs without play or forcing.

For this feminine model in 18ct white gold, we recommend vegetable-tanned alligator: the vertical grain reflects the elegance of the case and the noble material reinforces its jewelled character. A cognac-coloured alligator amplifies the chromatic richness of the gold, while glossy black emphasizes formality. For more contemporary alternatives, structured calf leather with gold deployant offers aesthetic versatility.

The Constellation 123.55.24.60.55.012 uses spring bars to secure straps to the lugs. Use a spring bar tool or blunt-tipped tweezers to gently compress the ends of the bar, then slide the old strap out of the lug. Insert the new strap (20mm width) and allow the bar to snap into place. If you are not experienced, we recommend entrusting the operation to Casati Milano to avoid damage to the gold case.

All straps with a 20mm lug width are compatible, regardless of brand. We emphasize: the measurement is critical. On milanostraps.it you will find a selection of 20mm leather straps in fine materials, ready for shipment and customizable. Casati Milano also creates bespoke straps with exclusive leather selection and 18-month warranty.

The lifespan of a leather strap depends on the material and usage. Vegetable-tanned alligator, if properly cared for, lasts 3-5 years with daily wear; structured calf 2-4 years. A shell cordovan strap can exceed 7-10 years. The natural patina of leather represents an evolving aesthetic value, not a defect. Avoid prolonged exposure to direct moisture and intense sunlight. Casati Milano offers an 18-month warranty on its own production and support for routine maintenance.