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Omega · Constellation

Strap for Omega Constellation 123.55.31.20.63.001

The Constellation Co-Axial 31 Red Gold / Diamond / Brown Supernova takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll Omega
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Lug width18 mm
Case diameter31 mm
Reference123.55.31.20.63.001 (aka: 12355312063001)
FamilyConstellation
MovementOmega caliber 8521 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial escapement
CaseRed Gold

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

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All Omega spring barsOpen →
Constellation Co-Axial 31 Red Gold / Diamond / Brown Supernova — watch

Straps for the Constellation 123.55.31.20.63.001

Selected for the 18 mm lug width

All 18 mm straps →

What I'm asked about the Omega Constellation 123.55.31.20.63.001

What strap size does the Omega Constellation 123.55.31.20.63.001 take?

The Omega Constellation 123.55.31.20.63.001 needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Omega Constellation 123.55.31.20.63.001 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Omega Constellation 123.55.31.20.63.001?

Yes, in 18 mm leather. On a 31 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Omega Constellation 123.55.31.20.63.001?

A 18 mm calf strap, for every day. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only

The atelier's website: casatimilano.com

Updated on · by Antonio Zichichi