Omega · Constellation
Strap for Constellation Co-Axial 27 Brushed Yellow Gold / Diamond / MOP Supernova
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Constellation 123.55.27.20.55.002 (aka: 12355272055002)
Selected for the 16 mm lug width
The Constellation 123.55.27.20.55.002 (aka: 12355272055002), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 123.55.27.20.55.002?
The lug width of this model is exactly 16mm. This dimension is specific to the 27mm ladies Constellation and has been calculated by Omega to ensure optimal proportions with the case. To verify compatibility, measure the distance between the two spring bar attachment points on the case.
Which strap should I choose for the Omega Constellation 123.55.27.20.55.002?
African alligator is the natural choice: its pronounced grain creates an elegant contrast with the yellow gold case. Vegetable-tanned calf in sepia or dark brown offers versatility. For silver dials, tortoiseshell grey alligator is sophisticated. We advise against rubber and NATO fabric, which betray the formal character of this model.
How do I change the strap on an Omega Constellation?
Equip yourself with a spring bar tool. Position the watch on a stable surface, gently access the lateral spring bars of the lugs, and remove the old strap. Insert the new strap ensuring that the spring bars are correctly aligned. If you are uncertain, entrust the work to a jeweler or the Casati Milano service.
Is there an aftermarket strap compatible with the 123.55.27.20.55.002?
Yes. 16mm straps made with a deployant suitable for yellow gold are compatible. Milano Straps offers a collection of customizable 16mm straps online, shipped ready to wear. For a bespoke experience, Casati Milano creates made-to-measure straps with access to exclusive leathers and custom finishes.
How long does a leather strap last on this watch?
A quality alligator or calf strap can last 3-5 years with ordinary maintenance (avoid prolonged water exposure, apply specific conditioners 2-3 times per year). Shell cordovan tends to last longer thanks to superior density. The warranty offered by Milano Straps covers 18 months for 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