Strap for Constellation Manhattan 25 Quartz Yellow Gold / Aventurine / Diamond

The lug width of the Omega Constellation 131.55.25.60.53.001 is 16mm. This measurement is the distance between the two attachment points on the watch case where the strap is mounted. It is essential to measure correctly from inside to inside of the lugs to ensure complete compatibility with aftermarket straps.

For the Constellation 131.55.25.60.53.001 in 18k yellow gold, we recommend an alligator strap (cognac brown, pearl grey, or deep black) or a shell cordovan with vegetable tanning for those seeking a patina that evolves over time. Vegetable-tanned calf leather remains the classic choice for discreet elegance. All straps must respect the 16mm lug width specification.

Changing the strap on a 25mm Constellation requires a dedicated tool (spring bar removal tool). Insert the tool into the small lateral holes on the case, aligned with the strap pins, and gently push to extract the pin. Once the pin is removed, the old strap comes away freely. Insert the new strap by aligning the holes at the ends, then reinsert the pin with an opposite motion. For convenience, we recommend having this operation performed by an experienced watchmaker.

The OEM (Original Equipment Manufacturer) strap for the Omega 131.55.25.60.53.001 is factory-supplied and perfectly calibrated to the lugs. Aftermarket straps, if certified for the 16mm lug width, offer complete compatibility but with slightly different construction tolerances. Artisan straps from Milano Straps guarantee superior aesthetic quality and materials, with a tolerance margin below 0.2mm.

A fine leather strap (alligator, shell cordovan, calf) worn daily typically lasts 3-5 years, depending on climate conditions and wear from sun exposure, humidity, and perspiration. Vegetable-tanned leather tends to last longer than synthetic tanning methods. A strap with an 18-month warranty like those from Casati Milano offers complete protection during the first eighteen months of use, with the possibility of free replacement for manufacturing defects.