Omega · Constellation

Strap for Constellation Co-Axial 35 Yellow Gold / Champagne

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter35 mm
Reference123.50.35.20.08.001 (aka: 12350352008001)
FamilyConstellation
MovementOmega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer
CaseYellow Gold

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Constellation 123.50.35.20.08.001 (aka: 12350352008001)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Constellation 123.50.35.20.08.001 (aka: 12350352008001), seen from the bench

The Constellation represents one of Omega's historic collections, characterized by the distinctive design with 'claws' on the case. It is powered by the self-winding calibre 2500 with co-axial escapement and chronometer certification, equipped with hour, minute, second and date indication. The 35mm yellow gold case features a fluted bezel and a crown decorated with the Omega star.

Frequently asked questions

What is the exact lug width of the Omega Constellation 123.50.35.20.08.001?

The lug width is 20mm. This value represents the internal distance between the case lugs where the strap is inserted. It is essential to respect this dimension to ensure a perfect fit without play or friction.

Which strap materials are best suited for the 35mm yellow gold Constellation?

Alligator is the supreme choice for this model: its regular texture enhances the refinement of the precious case. Excellent alternatives include vegetable-tanned calf for noble patina, shell cordovan for chromatic depth, and rubber calf for resistant daily wear in humid conditions.

How do you change the strap on an Omega Constellation without risk to the case?

Remove the original bracelet's <a href="/pages/termine-glossario/deployante">deployment clasp</a> by gently pressing the locking pins. Use a strap-changing tool or blunt instrument to extract the suspension pins from the case. Insert the new strap by aligning the lugs to the case shoulders and resecure the pins. Avoid direct impacts on the yellow gold case to prevent denting.

Are Milano Straps aftermarket straps 100% compatible with reference 123.50.35.20.08.001?

Yes, 20mm straps are tested for precise compatibility with Constellation geometry. All Milano Straps products meet the rigorous tolerances required for this iconic model, guaranteeing a fit without gaps or unwanted protrusions.

How long does an artisanal leather strap last on a Constellation worn daily?

A strap in quality alligator or sartorial calf maintains structural integrity for 3-5 years of daily use, with positive aesthetic aging over time. Durability depends on humidity exposure, the number of temperature fluctuations, and the frequency of strap changes. Straps with rubber backing extend longevity in humid environments.

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