Omega · Constellation

Strap for Constellation Quartz 27 Polished Red Gold / Snow / Diamond Supernova

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter27 mm
Reference123.55.27.60.55.011 (aka: 12355276055011)
FamilyConstellation
MovementOmega caliber 1376 Hours, Minutes
CaseRed Gold

Spring bar

Spring bars for Omega

The right category for this model · choose the 16 mm size

Straps for the Constellation 123.55.27.60.55.011 (aka: 12355276055011)

Selected for the 16 mm lug width

All 16 mm straps →

The Constellation 123.55.27.60.55.011 (aka: 12355276055011), seen from the bench

The Omega Constellation 123.55.27.60.55.011 is a refined interpretation of the iconic collection launched in 1952. This 27 mm red gold model features the distinctive four claws that embrace the case, the unmistakable signature of Constellation. The dial captures light with subtle luminosity, harmonizing with the 18k red gold case to balance sportiness and refinement. The Omega 1376 calibre ensures reliable movement with essential hour and minute functions, built to Bienne's precision standards. The 16 mm lug width is specifically calibrated for this model's anatomy, maintaining visual balance and proper wearability on the wrist.

Frequently asked questions

What is the lug width of the Omega Constellation 123.55.27.60.55.011?

The lug width is exactly 16 mm. This measurement is essential for selecting compatible straps. Always verify with a caliper the space between the lugs before purchasing an aftermarket strap, as even minor variations would prevent proper installation.

Which strap material pairs best with this rose gold Constellation?

Alligator leather represents the most sophisticated choice, creating a harmonious dialogue with rose gold. Vegetable-tanned calf leather is also excellent for a more everyday look, developing a natural patina over time. For formal occasions, cordovan shell in bordeaux tones amplifies the elegance of the case.

How do I change the strap on a ladies' Omega Constellation?

The strap is replaced by removing the pins connecting the lugs to the case. This operation requires delicate tools (a punch and tweezers) and a steady hand to avoid scratching the rose gold. If you are not experienced, entrust the task to an expert: the strap change service is quick and protects the integrity of the case.

Can I mount an aftermarket strap on this model?

Yes, provided you respect the 16 mm lug width. Straps available online from Milano Straps are verified for this compatibility. Ensure the strap width matches exactly that of the lugs to avoid slack or tension.

How long does a leather strap last on a watch like the Omega Constellation 123.55.27.60.55.011?

A quality leather strap (alligator, calf, cordovan shell) typically lasts 3–5 years with daily use, developing a pleasant patina. Durability depends on frequency of use, water exposure, and care. Artisanal straps such as those from Casati Milano include an 18-month warranty and can be restored by specialized professionals.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only