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Omega · Constellation

Strap for Constellation Co-Axial 35 Stainless Steel / Yellow Gold / Silver

Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

17mm
17 mm strapsAll Omega
Lug width17 mm
Case diameter35 mm
Reference123.20.35.20.52.002 (aka: 12320352052002)
FamilyConstellation
MovementOmega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer
CaseYellow Gold, Stainless Steel

Spring bar

Spring bars for Omega

The right category for this model · choose the 17 mm size

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The Constellation 123.20.35.20.52.002 (aka: 12320352052002), seen from the bench

The Constellation represents one of Omega's historic collections, characterized by the distinctive design with claws on the bezel. It is powered by the automatic caliber 2500 with co-axial escapement and chronometer certification, offering indication of hours, minutes, seconds and date. The reference 123.20.35.20.52.002 features a 35mm case that provides a balanced fit on the wrist.

Frequently asked questions

What is the exact lug width of the Omega Constellation 123.20.35.20.52.002?

The lug width of the Constellation 123.20.35.20.52.002 is 17 millimetres. This measurement represents the distance between the two spring bars that attach the strap to the case and is essential for ensuring compatibility. It is important to verify this dimension before purchasing a strap, as even half a millimetre of error would result in an improper fit.

Which strap is best suited for the Omega Constellation 123.20.35.20.52.002?

Dark brown or black alligator represents the most eloquent choice, emphasizing the geometric elegance of the Griffes artigli and the contrast between steel and yellow gold. Vegetable-tanned calf leather is a versatile alternative that develops a natural patina over time. For more formal contexts, shell cordovan offers superior elastic properties and a refined appearance. NATO straps find application in casual settings.

How do you change the strap on an Omega Constellation with 17mm lug width?

To change the strap, you must remove the spring bars that attach it to the case. Obtain a spring bar removal tool or contact a professional watchmaker. Insert the flat blade of the tool into the small slot beneath the spring bar, exerting gentle inward pressure to release the bar from its seat. Extract the old strap and insert the new strap by snapping the spring bar into position. This operation requires precision: if you are uncertain, the Casati Milano atelier performs the change during a customization session.

Are there aftermarket straps compatible with the Constellation 123.20.35.20.52.002?

Yes, artisanal aftermarket straps represent a significant personalization opportunity. Milano Straps catalogues exclusively <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-17mm">17mm straps compatible</a> with this model, available in various leathers and colours. The Casati Milano atelier also creates bespoke straps to order, with personal choice of leathers, monogram options and stitching thread variants, ensuring a completely personalized experience.

How long does a leather strap last on a watch like the Omega Constellation 123.20.35.20.52.002?

The lifespan of a leather strap varies depending on the material, frequency of wear and care. Quality artisanal alligator or calf leather can last 3-5 years if worn daily, while shell cordovan is renowned for exceptional longevity, up to 7-10 years. Straps made by Casati Milano include an 18-month warranty. Regular maintenance—avoiding excessive moisture and prolonged perspiration—significantly extends the life of the strap.

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