Omega · Constellation

Strap for Constellation Co-Axial 35 Red Gold / Diamond / Brown

Integrated bracelet: measurements, the most common questions, and the way to a made-to-measure strap.

Integrated bracelet

The Omega Constellation 123.55.35.20.63.001 (aka: 12355352063001) is designed with a bracelet integrated into the case. For a compatible made-to-measure strap, the Casati Milano atelier builds it on your watch.

Case diameter35 mm
Reference123.55.35.20.63.001 (aka: 12355352063001)
FamilyConstellation
MovementOmega caliber 2500 hours, minutes, seconds | date | co-Axial escapement, chronometer
CaseRed 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 →

The Constellation 123.55.35.20.63.001 (aka: 12355352063001), seen from the bench

The Omega Constellation reference 123.55.35.20.63.001 features the self-winding caliber 2500 with co-axial escapement and chronometer certification. The movement offers hours, minutes, central seconds and date indication. The functions include the patented Omega co-axial escapement for greater long-term accuracy.

Frequently asked questions

Can I fit a standard strap on this Omega Constellation?

No, the bracelet is integrated into the case. There's no standard lug where a strap would catch — the architecture of the Constellation is one unified object. If you want to change it, the only way is <a href="/pages/casati-booking">Casati Milano</a>: I craft a bespoke strap directly on your case, studying how the claws embrace the crystal.

How does the bespoke strap work for the Constellation?

We work by appointment only at <a href="/pages/casati-booking">Casati Milano</a>. I hold the watch in my hands, measure the exact curve of the red gold case, the diameter, how the claws open. Every millimetre must align — this is work that cannot be done remotely.

Which leather do you recommend for this model?

Mississippi Alligator. This Constellation breathes sporting elegance — the leather has a natural grain that speaks to the red gold without betraying the technical character of the case. It ages nobly, never withers.

How long does a well-made strap last?

It depends on wear. With care — kept dry, not left in direct sun for days — it lasts between 8 and 12 years. Fine leather changes with time, fibres settle, creases tell the story of your wrist. That's ageing, not deterioration.

Why is the Manhattan bracelet so important on this watch?

Because it isn't an accessory. The Constellation since 1952 was born as a symbol of chronometric precision, and that bracelet with claws embracing the crystal is the design signature. The 35mm red gold case speaks only to that geometry — a wrong strap betrays the original intent.

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