Omega · Constellation
Strap for Constellation Quartz 36 Stainless Steel / Sedna Gold / Silver / Bracelet
Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Constellation 131.20.36.60.02.001 (aka: 13120366002001), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 131.20.36.60.02.001?
The lug width of the Omega Constellation 131.20.36.60.02.001 is 23 millimetres. This dimension is specific and not interchangeable with other Omega models: always measure the internal space between the two lugs (the strap attachments) to confirm compatibility before purchase.
What is the best strap material for the Constellation Sedna Gold 131.20.36.60.02.001?
For this dual-tone model we recommend alligator (brown, cognac or black), vegetable-tanned calf (which ages beautifully) or shell cordovan. Alligator pairs elegantly with the 18-karat Sedna Gold, while vegetable-tanned calf develops a patina that accompanies the natural colour evolution of Sedna Gold over time. Avoid technical materials (rubber, NATO) that disrespect the architectural proportions of this timepiece.
How do you change the strap on the Omega Constellation 131.20.36.60.02.001?
The Constellation 131.20.36.60.02.001 uses standard spring bars compatible with the 23 mm lug width. You need a dedicated tool (strap remover or gentle pin punch) to compress the internal spring of the bar and extract it from its seat. Position the bar in the lower attachments of the new strap, then allow the spring to re-engage in the case lugs. Avoid hammers or crude tools that damage the attachments.
What aftermarket strap can I pair with my Omega Constellation 131.20.36.60.02.001?
Any strap measuring 23 millimetres with standard spring bar attachments is compatible. Check the online collection of 23mm straps on milanostraps.it for artisanal solutions in alligator, calf, shell cordovan and other premium materials. For a fully customized strap (measurements, initials, thread colour), the Casati Milano atelier creates bespoke pieces with direct consultation of leathers and 18-month warranty.
How long does a leather strap last on the Omega Constellation 131.20.36.60.02.001?
An artisanal quality strap (alligator or vegetable-tanned calf) typically lasts 3–5 years with moderate daily use, up to 7–8 years with occasional wear. Longevity depends on: frequency of use, sun and humidity exposure, quality of tanning and stitching. Alligator tends to be more resistant than calf. Periodic maintenance (gentle cleaning, conditioning with neutral creams) significantly extends lifespan. Straps from Casati Milano include an 18-month warranty against manufacturing defects.
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

