Omega · Constellation
Strap for Constellation Co-Axial 35 Stainless Steel / Red Gold / Grey
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Constellation 123.20.35.20.06.002 (aka: 12320352006002)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
The Constellation 123.20.35.20.06.002 (aka: 12320352006002), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 123.20.35.20.06.002?
The lug width of the 123.20.35.20.06.002 model is exactly 20mm, measured between the case lugs. This dimension is specific to this Constellation model and is essential to ensure compatibility with any aftermarket strap.
What is the best strap material for this Omega Constellation?
For the Constellation 123.20.35.20.06.002, we recommend alligator with vegetable tanning (which develops patina over time) or calf leather thicker than 1.4mm. Both materials maintain the formal elegance of the two-tone red gold and steel case, while rubber and NATO straps would appear visually unbalanced on this classic model.
How do you change the strap on an Omega Constellation with integrated lugs?
The integrated lugs of the 123.20.35.20.06.002 require the use of specific tools: a spring bar removal tool. Insert the tool into the hole under the lug, gently push to release the spring bar, and remove the old strap. For the installation of a quality replacement strap, it is advisable to consult an expert to avoid damage to the gold case.
Are there aftermarket straps compatible with this Constellation model?
Yes, any strap with a lug width of 20mm is compatible with the 123.20.35.20.06.002. Milano Straps offers a complete collection of customizable 20mm straps in fine leathers, with vegetable tanning, alligator, and calf options, available ready-made or made-to-order at the Casati Milano atelier.
How long does a leather strap last on a watch like this?
A quality leather strap, with vegetable tanning, has an average lifespan of 5-8 years under normal use conditions. Shell cordovan can last 40-50 years. Durability depends on: water exposure, sweat, frequency of use, and maintenance. A technical rubber strap has a longer lifespan (10-15 years) but less aesthetic character compared to artisanal leathers.
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

