Omega · Constellation
Strap for Constellation Quartz 27 Polished Stainless Steel / Red Gold / Diamond / MOP
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Constellation 123.25.27.60.55.005 (aka: 12325276055005), seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 123.25.27.60.55.005?
The Omega Constellation 123.25.27.60.55.005 has a lug width of 19mm. This measurement identifies the width of the case at the strap attachment points and must be measured precisely between the axes of the lug holes to select a compatible strap.
What is the best strap material for this Omega?
For the 123.25.27.60.55.005, we recommend alligator in smoked or cognac tones, which naturally enhances the rose gold case. Waxed calf leather in tobacco brown is excellent for those who appreciate patina development over time. For contemporary versatility, black FKM rubber offers elegant contrast with the two-tone gold-steel case.
How do you change the strap on an Omega Constellation 27mm?
The strap is replaced using a spring bar tool. Insert the flat lever under the spring bar from the underside of the case, lift slowly until the bar retracts, and remove the old strap. Insert the new strap by aligning the holes with the lugs, press the spring bar into position, and verify the lateral fit.
Is there a certified aftermarket strap for the 123.25.27.60.55.005?
Yes. All high-quality 19mm straps made from alligator, calf leather, or FKM rubber are compatible with the 123.25.27.60.55.005. On milanostraps.it you will find ready-to-ship straps with certified 19mm lug width, customizable in length, stitch color, and initials.
How long does a leather strap last on an Omega?
A premium leather strap (alligator or vegetable-tanned calf) typically lasts 3-5 years with daily wear, developing patina and character over time. Durability depends on exposure to water, sweat, and sunlight. The warranty on Casati Milano straps is 18 months 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

