Omega · Constellation
Strap for Constellation Manhattan 28 Quartz Sedna Gold / MOP - Emerald / Diamond
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
The Constellation 131.55.28.60.55.007, seen from the bench
Frequently asked questions
What is the lug width of the Omega Constellation 131.55.28.60.55.007?
The lug width is exactly 18 millimetres. This measurement represents the distance between the two strap attachment points on the case and remains constant. All compatible straps must measure 18mm to ensure proper insertion without forcing and secure removal. You can verify with a digital caliper or request assistance from our atelier.
Which strap is most suitable for a 28mm Constellation in Sedna Gold?
Cognac or tabac alligator represents the tonally coherent choice with Sedna Gold, thanks to the reddish warmth of Omega's proprietary alloy. Alternatively, vegetable-tanned calf in dark brown or shell cordovan in burgundy create elegant contrast. For formal occasions, black calf or suede maintain maximum sobriety. The choice depends on your personal style and frequency of use.
How do you change the strap on the Omega Constellation 131.55.28.60.55.007?
Proceed with a spring bar tool specifically designed for 18mm lugs. Position the watch on a soft surface, access the lateral holes on the case and gently push the pin towards the centre to release it. One of the two pins will slide out; remove the old strap and insert the new one by aligning the holes. Reposition the pin until it clicks into place. If inexperienced, entrust the task to a jeweller or our Casati Milano atelier.
Can I use an aftermarket strap or must I stay true to the original Omega bracelet?
18mm aftermarket straps are completely compatible with reference 131.55.28.60.55.007. Many Omega collectors alternate multiple straps to adapt to seasons, occasions and aesthetic preferences. Quality depends on the manufacturer: premium leathers (Hermès alligator, shell cordovan, Tuscan calf) guarantee longevity and controlled ageing. Milano Straps offers handcrafted straps tested on dozens of Omega movements.
How long does a natural leather strap last on a daily-wear watch?
A quality natural leather strap (alligator, vegetable-tanned calf, shell cordovan) lasts between 3 and 7 years with daily wear, conditioned by ambient humidity, sun exposure and maintenance care. Vegetable tanning resists oxidation better than chrome tanning. Monthly cleaning with a damp cloth and seasonal water-repellent protection extend lifespan. The Sedna Gold case does not degrade: wear concerns the strap alone, which is easily replaceable.
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