Omega · Constellation
Strap for Constellation Co-Axial 27 Polished Red Gold / Waxing Moon Snow / MOP Supernova
Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Recommended spring bar
Straps for the Constellation 123.55.27.20.55.003 (aka: 12355272055003)
Selected for the 18 mm lug width
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
Hammered calfskin strap in cuoio€98
The Constellation 123.55.27.20.55.003 (aka: 12355272055003), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega Constellation 123.55.27.20.55.003?
The lug width of the 123.55.27.20.55.003 model is 18mm. This measurement is precise and determined by the geometry of the integrated lugs in the rose gold case. Verifying compatibility with aftermarket straps is essential: a strap with the wrong width will not fit correctly and could damage the lugs.
What type of strap is best suited for the Constellation 123.55.27.20.55.003?
To enhance this rose gold model, alligator represents the most natural and elegant choice, thanks to its regular texture and lustre that pairs perfectly with the precious metal. Vegetable-tanned calfskin offers an alternative in full-grain leather that ages with character, while shell cordovan provides an almost waxy surface that is particularly captivating. For more sporty contexts, a silk NATO strap still maintains sophistication.
How do you change the strap on the Omega Constellation 123.55.27.20.55.003?
The strap is removed using a spring bar tool. Gently position the forked end of the tool under the pin that secures the strap to the lug, push slightly upward to compress the internal spring, then extract the pin. Repeat the process at the other lug. Installation of the new strap is done in reverse, ensuring that the pin is fully locked in position.
Are there aftermarket straps compatible with the 123.55.27.20.55.003?
Yes, any strap with an 18mm lug width is compatible with the Constellation 123.55.27.20.55.003. Numerous options can be found online in alligator, calfskin, shell cordovan and other materials. It is important to verify that the total length is appropriate for your wrist: the strap should cover approximately 60% of your wrist circumference for optimal comfort. A <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-18mm">customized 18mm strap</a> ensures the best fit.
How long does a natural leather strap last on this watch?
The lifespan of a leather strap depends on the type of material and wear. High-quality alligator and <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned</a> calfskin can last 4-7 years with daily use. Shell cordovan tends to be even more durable, often exceeding 10 years. Accelerated wear occurs with prolonged exposure to water, sweat and friction. To extend the life of the strap, it is advisable to alternate with other straps and regularly clean with soft brushes and specific products.
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