Omega · Constellation

Strap for Constellation Quartz 24 Polished Stainless Steel / Diamond Bezel / MOP

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter24 mm
Reference123.15.24.60.05.002 (aka: 12315246005002)
FamilyConstellation
MovementOmega caliber 1376 Hours, Minutes
CaseStainless Steel

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the Constellation 123.15.24.60.05.002 (aka: 12315246005002)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Constellation 123.15.24.60.05.002 (aka: 12315246005002), seen from the bench

The Omega Constellation model 123.15.24.60.05.002 features a 24 mm stainless steel case with quartz caliber 1376 movement. The iconic four "griffes" (lugs) integrate a suspension system that dampens external vibrations and protects the internal movement. This watch has a 20 mm lug width, which is essential for selecting a compatible strap. The closed caseback preserves the aesthetic integrity of the case design, while the compact dimensions and curved profile ensure natural wrist fit.

Frequently asked questions

What is the exact lug width of the Omega Constellation 123.15.24.60.05.002?

The lug width of this Constellation is strictly 20 millimeters. This distance is measured between the inner attachment points of the case. Any strap must be made specifically for this measurement; universal straps or those with a different lug width will not fit correctly and compromise both aesthetics and security.

Which strap material is best suited for the Constellation 24mm?

Vegetable-tanned alligator represents the most noble choice, offering natural texture and authentic aging. Smooth calf leather is highly versatile and formal. Shell cordovan is ideal for those who appreciate durability and minimal weight. For intense daily use, a NATO strap or FKM rubber strap ensures practicality without compromising the elegance of the case.

How do I change the strap on my Omega Constellation 123.15.24.60.05.002?

The Constellation uses an attachment system integrated into the case. The change requires the use of a specific tool (spring bar remover or pin removal tool) to extract the small metal pins that hold the strap to the lugs. We recommend entrusting this operation to a professional to avoid scratches on the case; Casati Milano offers this service at its bespoke atelier by appointment.

Can I use an aftermarket compatible strap instead of the original bracelet?

Absolutely. A 20mm artisanal strap fits perfectly on your 123.15.24.60.05.002. Materials such as alligator, calf, and shell cordovan offer a tactile and visual experience often superior to the original metal bracelet, while also allowing for seasonal rotation of color combinations.

What is the average lifespan of a leather strap for this watch?

A quality artisanal leather strap typically lasts 3–5 years with daily use, depending on the material. Vegetable-tanned alligator is more durable (5–7 years), while calf may require more frequent replacement. Lifespan increases significantly if you rotate multiple straps. Casati Milano guarantees 18 months on the material and artisanal craftsmanship.

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