Strap for Constellation Quartz 24 Brushed Stainless Steel / Red Gold / Diamond / Wavy MOP

The lug width of the Constellation 123.25.24.60.55.012 is exactly 18mm. This measurement is critical when purchasing aftermarket straps: even a minimal error compromises installation. You can verify it with a digital caliper by measuring the distance between the two metal terminals of the case where the bracelet connects.

For this model with a two-tone rose gold and steel case and mother-of-pearl dial, vegetable-tanned alligator is the most elegant choice: the natural grain echoes the dial's texture. Alternatively, Hermès calf leather or vegetable-tanned shell cordovan offer evolving patina over time, while a pearl grey NATO strap creates aesthetic continuity with the dial. The choice depends on usage (formal vs. daily wear) and color preference.

The Constellation 123.25.24.60.55.012 comes factory-fitted with an integrated bracelet; to install a strap, you must first remove the bracelet using a spring bar removal tool. Position the tool in the lateral cavities beneath the case, gently press to compress the internal spring, and slide out the pin. Reinsert the new 18mm strap by following the reverse procedure. If you're inexperienced, consult a watchmaker.

Yes, provided the strap is exactly 18mm in lug width. Quality 18mm aftermarket straps are fully compatible with the Constellation, as they use the same factory spring bar pins. Always verify length proportions: the lower section should be approximately 100mm and the upper section 80mm for a correct fit.

Durability depends on material and usage. A vegetable-tanned alligator strap, with proper care (regular cleaning, protection from moisture), lasts 3-5 years. Hermès calf leather, being softer, requires more frequent maintenance but develops a fascinating patina. Shell cordovan, if protected, exceeds 5 years. NATO or natural rubber straps have superior longevity (5-10 years) but less aesthetic evolution. The warranty on artisanal Casati Milano straps is 18 months.