Omega · Constellation

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

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter27 mm
Reference123.55.27.60.55.005 (aka: 12355276055005)
FamilyConstellation
MovementOmega caliber 1376 Hours, Minutes
CaseRed Gold

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

All Omega spring barsOpen →

The Constellation 123.55.27.60.55.005 (aka: 12355276055005), seen from the bench

The Constellation represents one of Omega's historic collections, characterized by the distinctive design with claws on the dial. The model mounts the Omega 1376 quartz caliber with hour and minute indication. The 27mm diameter yellow gold case presents a compact size.

Frequently asked questions

What is the exact lug width of the Omega Constellation 123.55.27.60.55.005?

The lug width of the Constellation 123.55.27.60.55.005 is 18mm. This measurement is specific to the model and represents the distance between the case attachment pins. It is essential to verify this dimension before purchasing a replacement strap to avoid incompatibility or unwanted play.

What strap material is recommended for an Omega Constellation in red gold?

Alligator represents the most elegant choice for a red gold Constellation, thanks to its regular grain and natural shadings that create a harmonious dialogue with the precious metal. Smooth calf leather offers a refined and versatile alternative, while dark shell cordovan ensures material excellence and develops a rich patina over time. A neutral NATO strap remains a practical solution for daily wear.

How do I change the strap on an Omega Constellation 123.55.27.60.55.005?

Changing the strap requires specific tools such as a spring bar tool or percussion tool. The Constellation's attachment pins must be gently pushed upward from below using the appropriate instrument. It is recommended to perform the operation on a soft surface to avoid damage to the red gold case. Alternatively, you can consult a professional watchmaker to ensure precision.

Can I use an aftermarket strap on an Omega Constellation 123.55.27.60.55.005?

Yes, you can use aftermarket straps as long as they have a compatible 18mm lug width. Milano Straps offers a wide selection of straps in alligator, calf, shell cordovan and other materials, all available in 18mm size and customizable according to your aesthetic preferences. It is always important to verify lug width compatibility before purchase.

How long does a leather strap last on an Omega Constellation?

The lifespan of a leather strap depends on the material, frequency of use, and maintenance. High-quality alligator or shell cordovan, with proper care, can last 5-8 years with moderate wear. Calf leather tends to wear more quickly, typically 3-5 years. Rotating between multiple straps and periodic cleaning significantly extend longevity. Milano Straps offers straps with an 18-month warranty and recommends replacing the inner strap when it shows signs of structural failure.

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