Strap for Constellation Quartz 27 Brushed Stainless Steel / Yellow Gold / MOP

The Omega Constellation 123.20.27.60.55.002 features a lug width of 20 mm. This dimension is the distance between the two case lugs where the strap attaches, and represents a specific standard for this model. It is essential to measure it correctly with a ruler or caliper to ensure compatibility with aftermarket straps.

For an elegant watch like the Constellation, alligator in cognac or dark brown tones is the most historic and refined choice, enhancing the mother-of-pearl dial. High-quality vegetable-tanned calf leather offers versatility, durability, and the ability to develop a beautiful patina. Shell cordovan is excellent for those seeking a resilient strap with a formal aesthetic. Navy or grey NATO adds contemporary appeal without betraying the dress spirit of the watch.

The procedure requires specific tools: a spring bar remover and a small tweezer. Place the watch on a soft surface, identify the lateral pins that held the original strap, gently insert the remover to release the spring, extract the pin, and repeat on the other side. Insert the new strap by aligning it with the holes, reintroduce the pins until you feel the locking click. If uncertain, a professional watchmaker can complete the operation in minutes.

Yes, although 20 mm is a less common size than 18 mm or 22 mm, the aftermarket offers quality options. Milano Straps offers a complete collection of 20 mm straps customizable in leather, material, color, and hardware. For those seeking a complete artisanal experience, the Casati Milano atelier creates bespoke straps with personal leather selection and an 18-month warranty.

Durability depends on the material and care. A high-quality artisanal alligator or shell cordovan strap lasts an average of 3-5 years with daily use, thanks to the natural fiber density. Good quality calf leather resists 2-4 years before showing significant cracks. Longevity increases if the watch is not worn daily and the strap is subjected to regular maintenance: avoid prolonged moisture, occasionally apply a protective balm, and rotate multiple straps. Bespoke Casati Milano straps, crafted with selected leathers and artisanal finishes, are designed to last over 5 years and age with elegance.