Omega · Constellation

Strap for Constellation Co-Axial 35.5 Red Gold / Silver / 160 Years

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

Lug width20 mm
Case diameter35 mm
Reference111.25.36.20.52.001
FamilyConstellation
MovementOmega caliber 2500 hours, minutes, seconds | date | co-Axial escapement, chronometer
Year2008
CaseRed Gold, Stainless Steel

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 111.25.36.20.52.001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

Frequently asked questions

What is the <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Omega Constellation 111.25.36.20.52.001?

The Omega Constellation 111.25.36.20.52.001 is fitted with a 20mm lug width. This width is standard for many vintage and modern Constellation models, and is compatible with a wide catalogue of artisanal straps.

What strap material is recommended for this Constellation?

For the Constellation 111.25.36.20.52.001 in rose gold and steel, we recommend calfskin leather, alligator, or shell cordovan. Alligator enhances the sporty-dress elegance, while vegetable-tanned calfskin develops visible patina over time. Natural materials balance its two-tone character.

How is the <a href="/pages/termine-glossario/misura-ansa">lug width</a> of a watch measured?

Lug width is the distance between the two case lugs in millimetres. For the 111.25.36.20.52.001 it is 20mm: measure the internal space between the lugs where the strap is inserted. This dimension determines strap compatibility.

Can I fit an aftermarket strap on this Omega Constellation?

Yes. The Omega Constellation 111.25.36.20.52.001 accepts any strap with 20mm lug width. Aftermarket straps offer aesthetic customization, texture and leather finishing variations, as well as styling alternatives to the original bracelet, while maintaining full mechanical compatibility.

How long does a leather strap last on a watch worn daily?

A quality leather strap, if properly cared for, has an average lifespan of 18-24 months with daily wear. Materials such as shell cordovan and alligator age naturally, developing visible patina and grain, extending aesthetic durability. Milano Straps warranty covers 18 months.

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