Omega · Constellation

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

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter35 mm
Reference123.20.35.20.06.001 (aka: 12320352006001)
FamilyConstellation
MovementOmega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer
CaseYellow Gold, Stainless Steel

Recommended spring bar

Spring bars Omega 22mm — 1.8mm diameter

Technical match for lug width and diameter · lug 22 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Constellation 123.20.35.20.06.001 (aka: 12320352006001)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Constellation 123.20.35.20.06.001 (aka: 12320352006001), seen from the bench

The Omega Constellation reference 123.20.35.20.06.001 is powered by the 2500 caliber with co-axial escapement and chronometer certification. The automatic movement offers hour, minute, second and date indication. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the Omega Constellation 123.20.35.20.06.001?

The lug width of the Omega Constellation 123.20.35.20.06.001 is 22mm. This width is the standard for 35mm Constellation models, a classic proportion that requires specific 22mm straps for precise fitting and without play.

What is the best strap for the Constellation 123.20.35.20.06.001?

For this two-tone stainless steel and yellow gold case, premium alligator remains the most authoritative choice: the natural grain amplifies formal elegance and pairs perfectly with the gold details. Conscious alternatives are shell cordovan for longevity and exclusive patina, or vegetable-tanned calf for everyday versatility.

How do I change the strap on my Omega Constellation?

The 123.20.35.20.06.001 features standard removable lugs. Procure a spring bar tool: insert the flat tip into the slot of the spring under the lug, gently press downward to compress the spring, and remove the lug. Repeat on the other side. Insert the new strap by reversing the procedure: align the lug to the holes, compress the spring with the tool, and snap the lug into position.

Can I use an aftermarket strap on this Omega?

Yes, any quality strap with 22mm lug width is compatible with the 123.20.35.20.06.001. We recommend artisanal straps from Milano Straps for guarantee of noble materials, certified construction and finishing that respects the watch's value.

How long does a leather strap last on an Omega?

A quality leather strap, with vegetable tanning or shell cordovan, lasts from 3 to 7 years depending on intensive use and climate conditions. Alligator and cordovan last longer, calf requires light maintenance. Milano Straps offers an 18-month warranty and undersaddle replacement services to extend the strap's lifespan.

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