Omega · Constellation

Strap for Constellation Master Chronometer 39 Yellow Gold - Diamond / Silver / Bracelet

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

24mm

24 mm straps All Omega

Lug width24 mm

Case diameter39 mm

Reference131.55.39.20.52.002 (aka: 13155392052002)

FamilyConstellation

MovementOmega caliber 8801 hours, minutes, seconds | date | chronometer, co-Axial escapement

Year2019

CaseYellow Gold

Spring bar

Spring bars for Omega

The right category for this model · choose the 24 mm size

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Straps for the Constellation 131.55.39.20.52.002 (aka: 13155392052002)

Selected for the 24 mm lug width · workshop selection

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The Constellation 131.55.39.20.52.002 (aka: 13155392052002), seen from the bench

The Omega Constellation reference 131.55.39.20.52.002 is powered by the automatic Caliber 8801 with Co-Axial escapement and Chronometer certification. The movement provides hour, minute, second and date indication. The watch features 24.20mm lugs and a construction that meets the Master Chronometer standards.

Frequently asked questions

What is the lug width of the Omega Constellation 131.55.39.20.52.002?

The lug width is 24mm. You can verify it by measuring the external distance between the two side lugs with a digital caliper, or by checking the original strap at the base of the attachment on the case.

What is the best strap for the Constellation 131.55.39.20.52.002 in yellow gold?

Mississippi alligator in black or cognac represents the most elegant stylistic choice for this model. Vegetable-tanned calf leather in tobacco or bordeaux tones offers a more sophisticated alternative with natural patina development over time.

How do I change the strap on my Omega Constellation 131.55.39.20.52.002?

Use a spring bar tool to compress the spring pins at the ends of the strap. Once the strap is free, insert the new spring pins into the replacement strap and secure them to the case lugs by compressing until you hear a locking click.

Can I use aftermarket straps compatible with the Constellation 131.55.39.20.52.002?

Yes, all straps with 24mm lug width are compatible. Ensure that the total width of the strap matches the case width for proportionate aesthetics and verify that the strap thickness is not excessive relative to the lugs.

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

A quality alligator or calf leather strap offers an average lifespan of 3-5 years with regular use, depending on exposure to sun, humidity and perspiration. Vegetable-tanned straps develop natural patina and can last longer if subjected to periodic maintenance (leather conditioner).

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