Strap for Constellation Quartz 24 Brushed Yellow Gold / Diamond / Champagne MOP

The lug width of the Constellation 123.55.24.60.57.001 is 20mm. This width is the standard for this family of feminine 24mm Constellations and is crucial for compatibility with aftermarket straps. To verify, measure the space between the two lugs with a digital caliper.

For a Constellation 123.55.24.60.57.001 in yellow gold, dark brown or cognac alligator represents the most aesthetically coherent choice: it amplifies the warmth of the gold and creates chromatic harmony. Vegetable-tanned calf offers modernity with visible aging, while shell cordovan provides brilliance. For daily wear, cotton-polyester NATO guarantees practical versatility.

Changing the strap is straightforward: obtain a spring bar tool (a specific tool with a flat tip), position it under the first lug, gently push downward until you compress the internal spring, then remove the pin. Repeat on the other side. Insert the new 20mm strap, reinsert the pins, ensuring they click correctly into place. If you are not experienced, the Casati Milano atelier offers this service.

Yes, any 20mm strap is compatible with the 123.55.24.60.57.001. Ensure the strap has sufficiently robust lugs to accommodate the pins of your Omega. The artisanal straps from Milano Straps are designed to withstand luxury timepieces and are built with precise tolerances for this width.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with regular daily wear, provided it undergoes basic maintenance: avoid prolonged moisture, protect from excessive sweat, clean periodically with a soft cloth. Vegetable-tanned leather straps age visibly—developing patina and changing in tone—but maintain structure and durability. Casati Milano guarantees 18 months of free replacement for construction defects.