Omega · Constellation

Strap for Constellation Master Chronometer 41 Sedna Gold / Ceramic / Blue

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

Lug width20 mm
Case diameter41 mm
Reference131.63.41.21.03.001 (aka: 13163412103001)
FamilyConstellation
MovementOmega caliber 8901 hours, minutes, seconds | date | chronometer, co-Axial escapement
Year2020
CaseCeramic, Sedna 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 131.63.41.21.03.001 (aka: 13163412103001)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Constellation 131.63.41.21.03.001 (aka: 13163412103001), seen from the bench

The Omega Constellation reference 131.63.41.21.03.001 is equipped with the automatic caliber 8901 with Co-Axial escapement and chronometer certification. The movement offers indication of hours, minutes, seconds, and date. The case has dimensions of 41mm with standard lugs for the model.

Frequently asked questions

What is the exact lug width of the Omega Constellation 131.63.41.21.03.001?

The lug width of the Omega Constellation 131.63.41.21.03.001 is 20mm. This width is the standard for 41mm case watches and is compatible with all our 20mm strap collection on milanostraps.it.

Which strap is best suited for the Constellation 131.63.41.21.03.001 with Sedna Gold case?

To enhance the Sedna Gold, we recommend straps in toasted brown alligator, cognac calf, or bordeaux shell cordovan with vegetable tanning. These materials create an elegant visual contrast and develop a natural patina over time that pairs perfectly with the warm color of the gold.

How do you change the strap on this Omega model?

The Omega Constellation features quick-release lugs. Position the watch on a soft surface with the case back facing upward. Use a small tool or the tip of a pen to gently press the release button on the lug shoulder, then remove the pin. Repeat on the other side and the strap will detach completely. Installing the new strap is the reverse procedure.

Are aftermarket straps compatible with the Omega Constellation 131.63.41.21.03.001?

Yes, any artisanal strap with 20mm lug width is fully compatible. On milanostraps.it you will find a selection of straps in genuine leather, rubber and fabric, all crafted to fit perfectly the lugs of this model.

How long does a leather strap last on a daily-wear watch?

A quality leather strap, made from alligator or shell cordovan with vegetable tanning, will last 3-5 years with moderate daily use and proper maintenance. Our artisanal straps are guaranteed for 18 months against manufacturing defects. Natural aging of the leather is part of the charm: it develops patina and character over time.

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