Omega · Constellation

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

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
Reference123.15.24.60.55.004 (aka: 12315246055004)
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 123.15.24.60.55.004 (aka: 12315246055004)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Constellation 123.15.24.60.55.004 (aka: 12315246055004), seen from the bench

The Omega Constellation Quartz 24 Polished Stainless Steel / Diamond / MOP Supernova (ref. 123.15.24.60.55.004) is a compact 24mm ladies' watch with a 20mm lug width. It features the iconic four-claw design, Omega 1376 quartz calibre, and a stainless steel case with anti-reflective sapphire crystal. Water resistance is 30 metres, with a silver dial, Bâton indices, and COSC certification.

Frequently asked questions

What is the lug width of the Omega Constellation 123.15.24.60.55.004?

The lug width of this Constellation is 20 millimeters. This standard is consistent across all 24mm models in the collection. You can verify it by measuring the distance between the two horizontal pins with a caliper, or by consulting the official Omega user manual.

Which strap is best suited for the 24mm Constellation with 20mm lug width?

Alligator is the most refined choice and harmonizes beautifully with the elegant design of the 24mm. Alternatively, vegetable-tanned calf offers versatility and ages splendidly, developing a rich patina over time. For robust daily wear, a silk NATO or FKM rubber strap are excellent practical solutions.

How do I change the strap on my Omega Constellation?

The Constellation 123.15.24.60.55.004 is fitted with spring bars that secure the strap to the case. Use a dedicated spring bar tool (included in many strap-changing kits) or consult an expert jeweler. For personalized service, Casati Milano offers installation by appointment at the atelier in Milan.

Are aftermarket straps compatible with the 24mm Omega Constellation?

Yes, provided the lug width is exactly 20 millimeters. Milano Straps offers a complete collection of artisanal 20mm straps tested and guaranteed compatible with this model. Always verify the reference before ordering to avoid incompatibility.

How long does a leather strap last on a watch worn daily?

A quality leather strap (alligator, calf, shell cordovan) typically lasts 2-4 years with daily wear, depending on ambient humidity, perspiration, and maintenance. Regular care (cleaning, drying, conditioning) significantly extends its lifespan. Milano Straps straps are guaranteed for 18 months and crafted with premium leather for maximum durability.

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