Omega · Constellation

Strap for Constellation Automatic 27.5 Stainless Steel / Grey

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter28 mm
Reference1592.40.00
FamilyConstellation
MovementOmega caliber 2520 hours, minutes, seconds | date
CaseStainless Steel

Recommended spring bar

Spring bars Omega Speedmaster Seamaster 19mm

Technical match for lug width and diameter · lug 19 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Constellation 1592.40.00

Selected for the 19 mm lug width

All 19 mm straps →

The Constellation 1592.40.00, seen from the bench

The Omega Constellation reference 1592.40.00 is equipped with the automatic caliber 2520 with indication of hours, minutes, seconds and date. The movement offers essential functions for daily use with the characteristic precision of Omega calibers. The Constellation collection represents one of the historic lines of the Swiss brand in the segment of elegant watches.

Frequently asked questions

What is the lug width of the Omega Constellation 1592.40.00?

The Omega Constellation 1592.40.00 features a 19 mm lug width. This measurement is the space between the two spring bars that connect the bracelet or strap to the case. To verify it, measure the distance between the lugs from outer edge to outer edge: it should be exactly 19 mm.

What is the best strap for the Omega Constellation 1592.40.00?

It depends on the context of use. Brown or dark green dyed alligator is the most versatile choice, with pronounced texture and noble aging. Shell cordovan offers an extraordinary transparent patina over time. Vegetable-tanned calf represents a compromise between formality and everyday wear. For informal use, a silk NATO strap is a coherent modern reinterpretation.

How do you change the strap on an Omega Constellation 1592.40.00?

Strap replacement requires the use of a specific tool (spring bar remover tool) to extract the spring bars from the case lugs. If you are not experienced, we recommend contacting a qualified jeweler or watchmaker. The operation is straightforward but must be performed carefully to avoid scratching the case.

Can I install an aftermarket 19mm compatible strap on my Constellation 1592.40.00?

Absolutely yes. The Constellation 1592.40.00 is fully compatible with bespoke 19 mm straps from any brand, provided the construction quality is adequate. Customizable straps available online offer the possibility to choose leather, color, buckle (including deployant clasp) and stitching thread.

How long does an authentic leather strap last on an Omega Constellation 1592.40.00?

Durability depends on the material and usage. A quality artisanal alligator or shell cordovan strap lasts 4-7 years in daily use, developing a fascinating patina. Vegetable-tanned calf, being softer, has an average lifespan of 3-5 years. Vegetable tanning ages better compared to synthetic chrome tanning. Regular maintenance (gentle cleaning and occasional conditioning with natural conditioner) significantly extends the strap's life.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only