Strap for Constellation Co-Axial 27 Brushed Red Gold / Diamond / MOP Stars

The lug width of the 123.55.27.20.05.003 is 14.00mm. This measurement is specific to the compact Constellation models in this generation and ensures proportionate fit on the 27mm case. To measure accurately, use a digital calliper and position it between the two case lugs: the internal distance represents your lug width.

For a Constellation 123.55.27.20.05.003 in 18K rose gold, we recommend straps in cognac or dark brown alligator, which create harmonious dialogue with the precious case. Shell cordovan represents a sophisticated alternative for those who appreciate evolved patina over time. Tuscan calf with vegetable tanning offers versatility and natural texture that ages gracefully. For summer contexts, cream or sand-coloured calf creates visual lightness whilst maintaining elegance.

Strap replacement requires careful handling, especially on rose gold cases. Acquire a spring bar tool with rounded ends. Gently insert the tool under the attachment pin, applying light pressure inward to release one end of the strap at a time. Repeat on the other side. Insert the new strap by aligning the holes with the pins, pressing softly until it clicks. If you lack experience, consult a professional to avoid case damage.

Yes, any strap with a 14mm lug width is compatible with your 123.55.27.20.05.003. Quality artisanal aftermarket straps offer the opportunity to personalise your Constellation without compromising case integrity. Milanostraps offers a curated collection of 14mm straps in alligator, shell cordovan, calf leather and textiles, all compatible and customisable for this Omega reference.

Leather strap longevity depends on material choice and usage intensity. Quality artisanal alligator or shell cordovan, with moderate daily use and proper care (avoiding excessive moisture, harsh cleaners), offers 3-5 years before visible wear becomes apparent. Naturally-tanned calves tend to develop patina rather than deteriorate rapidly. To extend strap life, rotate regularly with alternatives and apply specific balms every 6-8 months.