Strap for Constellation Manhattan 29 Co-Axial Master Chronometer Stainless Steel / Yellow Gold / Silver Diamond / Diamond

The Omega Constellation 131.25.29.20.52.002 is equipped with 18-millimetre lugs. This measurement refers to the distance between the two lugs of the case, measured from inner wall to inner wall. It is the fundamental parameter for choosing a compatible strap. A measurement error of even a few millimetres can result in the strap failing to fit or excessive play during use.

The best material depends on the context of use and personal preferences. For formal environments, alligator in chocolate or tobacco tones enhances the yellow gold case. For a versatile version, vegetable-tanned calf develops a natural patina over time. For those desiring maximum colour evolution, burgundy shell cordovan transforms towards plum tones over the years. For sports use, black Tropic rubber maintains the technical character of the two-tone case.

Changing the strap requires no special tools. Turn the watch over and identify the lugs on the case (small metal pins). Using a thin, flat instrument—such as the end of a Swiss Army knife or a spring bar tool—gently push down the internal spring of the pin to release the old strap. Insert the new 18-millimetre strap by aligning it with the lugs and release the pressure to snap it into place. If you have any doubts, consult a professional watchmaker.

Yes, any strap with 18-millimetre lugs is compatible, regardless of brand. Compatibility depends exclusively on lug width, not on the strap manufacturer. Many enthusiasts choose artisanal straps from small producers to express a personal style without compromising on construction quality. On milanostraps.it you will find a selection of customisable 18mm straps for your Constellation.

The lifespan of a natural leather strap varies depending on the material, frequency of use, and exposure to atmospheric agents. A superior quality alligator strap lasts an average of 3-5 years with moderate daily use. Shell cordovan, thanks to its structural density, easily reaches 7-10 years. Vegetable-tanned calf offers an average lifespan of 4-6 years. The greatest wear occurs in the area of continuous bending near the buckle. Keeping the strap dry after exposure to sweat or water significantly extends its useful life.