Strap for Constellation Quartz 27 Brushed Red Gold / Diamond / MOP

The lug width of the Omega Constellation 123.55.27.60.55.002 is 18mm. This measurement represents the distance between the two horizontal pins that attach the strap to the case. It is essential to respect this exact width to ensure perfect fit and avoid lateral movements that would compromise both the aesthetics and the longevity of the case lugs.

For a 27mm rose gold Constellation, alligator leather is the most refined choice: its regular texture and fine grain enhance the luminosity of rose gold. Dark brown or burgundy alligator creates warm contrast while maintaining sophistication. Alternatively, vegetable-tanned calf leather ages beautifully, developing natural patina, while wine-colored shell cordovan offers fascinating modernity. For daily wear, smooth black or blue rubber remains discreet and practical.

Strap replacement requires removal of the two horizontal pins (spring bars) that attach the strap to the case. Using a specialized spring bar tool, gently push the pins inward to release the ends of the current strap. Next, insert the new 18mm strap by aligning the holes with the pins, then reinsert the spring bars in position. To maintain warranty or avoid wear risks, we recommend having the operation performed at a specialized watch repair shop.

Yes, it is possible to use quality aftermarket straps. The only technical constraint is respecting the 18mm lug width. Milano Straps offers straps in alligator, vegetable-tanned leather, shell cordovan, and rubber with customizable sizes, built to artisanal standards. Verify that the strap is free of construction defects and that the holes are perfectly aligned to the 18mm width to avoid stress on the case lugs.

The lifespan of a leather strap depends on frequency of use, climate, and material. A quality artisanal alligator or vegetable-tanned leather strap, with moderate use (3-5 days per week), maintains structural integrity for 3-5 years. Exposure to moisture and perspiration accelerates wear. Shell cordovan, more resistant, can last 5-7 years. A rubber strap lasts longer (7-10 years), but loses elasticity over time. Vegetable tanning develops natural patina, enriching the strap; regular maintenance (cleaning, conditioning) significantly extends its useful life.