Omega · Constellation
Strap for Constellation Manhattan 25 Quartz Stainless Steel / Yellow Gold / Aventurine
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 131.20.25.60.53.001 (aka: 13120256053001)
Selected for the 16 mm lug width
The Constellation 131.20.25.60.53.001 (aka: 13120256053001), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega Constellation 131.20.25.60.53.001?
The Omega Constellation 131.20.25.60.53.001 has a lug width of 16mm. This measurement is critical for compatibility with aftermarket straps: 14mm or 18mm straps will not fit correctly. To verify the measurement, position a digital caliper between the two lugs without excessive pressure on the case.
Which strap material pairs best with the Constellation 131.20.25.60.53.001?
Alligator represents the most aesthetically coherent choice for this model, thanks to its fine grain that enhances the lug geometry and the two-tone case. Dark brown or black alligator with a yellow gold deployant clasp replicates the watch's architecture. For versatility, vegetable-tanned calf offers natural patina over time, while textile straps maintain lightness without formal compromise.
How do I change the strap on my Omega Constellation 131.20.25.60.53.001?
Strap replacement requires a specific tool (spring bar tool) to compress the attachment pins from the lugs. Position the watch on a soft surface to protect it, lift the old strap with the tool, and remove the pins. Insert the new pins into the aftermarket strap, compress slightly, and install into the new strap. If the procedure concerns you, the Casati Milano atelier offers a strap change service with complimentary inspection.
Does the Constellation 131.20.25.60.53.001 accept 16mm aftermarket straps?
Yes, the 131.20.25.60.53.001 model accepts aftermarket straps with 16mm lug width. Milano Straps offers a collection of compatible 16mm straps customizable in length, color, initials, and stitching thread type. The Casati Milano atelier also creates custom straps with personal selection of premium leathers and noble metal deployant clasps.
How long does a leather strap last on my 25mm Omega?
A premium leather strap (alligator, vegetable-tanned calf) on a 25mm watch with daily use lasts an average of 5-7 years. Durability depends on frequency of use, climate (humidity accelerates aging), and maintenance. Casati Milano straps include an 18-month warranty and support for natural wear. Protecting the strap from constant sun exposure and very humid environments significantly extends its lifespan.
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

