Omega · Constellation
Strap for Constellation Quartz 27 Brushed Stainless Steel / Yellow Gold / Diamond / Silver Omega
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 123.25.27.60.52.002 (aka: 12325276052002)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
The Constellation 123.25.27.60.52.002 (aka: 12325276052002), seen from the bench
Frequently asked questions
What lug width does the Omega Constellation 123.25.27.60.52.002 have?
The Omega Constellation 123.25.27.60.52.002 comes standard equipped with a 20mm lug width. This measurement is proportionate to the 27mm case diameter and ensures universal compatibility with all aftermarket straps of the same width.
Which strap is best suited for the Omega Constellation 123.25.27.60.52.002?
For the two-tone yellow gold and steel 123.25.27.60.52.002, we recommend a polished black alligator for a formal look, or a cognac brown calf leather with vegetable tanning for a warm, everyday pairing. Bordeaux shell cordovan offers sophisticated visual complexity. The choice depends on intended use: formal, daily, or versatile.
How do I change the strap on my 27mm Omega Constellation?
The straps on the Constellation 123.25.27.60.52.002 are changed by extracting the spring bars that secure the lug to the case. A specific tool (spring bar tool) is required for gentle depression. We recommend consulting a trusted watchmaker for precise operations, or contacting Casati Milano for professional assistance.
Can I use a 20mm aftermarket strap on my Constellation 123.25.27.60.52.002?
Yes, any strap with a 20mm lug width is fully compatible with the Constellation 123.25.27.60.52.002. Milanostraps offers a wide range of customizable 20mm straps, from ready-to-ship solutions to bespoke straps handcrafted by Casati Milano.
How long does a leather strap last on an Omega watch?
A premium leather strap (alligator, calf, shell cordovan) on an Omega Constellation has an average lifespan of 3-5 years with daily wear, depending on frequency of use and maintenance. The quality of tanning and craftsmanship significantly impact durability; straps handcrafted by Casati Milano benefit from an 18-month warranty.
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

