Strap for Constellation Quartz 27 Brushed Stainless Steel / Yellow Gold / Diamond / Champagne Supernova

The Constellation 123.25.27.60.58.001 features a lug width of 20mm. This dimension represents the distance between the two metal pins where the strap attaches. It is essential to measure correctly to ensure compatibility: position a digital caliper perpendicularly between the pin centers near the case.

For a Constellation with a two-tone steel and yellow gold case, an alligator strap in vegetable tanning with tobacco brown remains the most refined choice. The geometric texture of the reptile amplifies the damascened pattern of the dial, while the warm tone of aged leather naturally complements the yellow gold without competing aesthetically with the two-tone case. Alternatively, a bordeaux calf offers daily versatility.

Release the deployant (folding clasp) and locate the two metal pins protruding from the case at 12 and 6 o'clock. Use a dedicated tool (spring bar tool) or consult a watchmaker: insert the tip into the pin slot, release the internal spring, and extract the pin. Repeat for the second pin. Insert the new strap into the same pins, ensuring they seat firmly. The deployant is typically fixed and remains on the case.

Yes, provided the lug width is exactly 20mm. Omega Constellation watches accept compatible quality straps, provided they are made by experienced craftsmen who respect dimensional tolerances. On milanostraps.it you will find a selection of 20mm straps in fine leathers and woven cotton, with customization options and 18-month warranty through Casati Milano.

A quality leather strap on this model has an average lifespan of 4-6 years with daily wear, provided regular maintenance is performed. Factors influencing longevity include frequency of use, ambient humidity, sun exposure, and protective treatments. Natural vegetable tanning develops a patina that improves over time, while lesser quality leathers deteriorate visibly. The Casati Milano atelier offers replacement and regeneration services with personalized assessment.