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Omega · Museum Collection

Strap for Museum Collection N° 1 "Pilots 1938" Aquarella Yellow Sapphires

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

24mm
24 mm strapsAll Omega
Lug width24 mm
Case diameter40 mm
Reference5779.71.56
FamilyMuseum Collection
MovementOmega caliber 2200 hours, minutes, small seconds
Year2004
CaseStainless Steel

Spring bar

Spring bars for Omega

The right category for this model · choose the 24 mm size

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Straps for the Museum Collection 5779.71.56

Selected for the 24 mm lug width · workshop selection

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The Museum Collection 5779.71.56, seen from the bench

The Omega Museum Collection 5779.71.56 "Pilots 1938" Aquarella Yellow Sapphires is a rare archive piece from Swiss watchmaking. The 40.20mm stainless steel case houses the manual-wound Omega caliber 2200 movement with hours, minutes and small seconds. The design reflects conscious reinterpretation of historic proportions and construction philosophy, combining functional minimalism with aesthetic refinement. Lug-to-lug distance is 24mm.

Frequently asked questions

What is the exact lug width of the Omega Museum Collection 5779.71.56?

The Omega Museum Collection 5779.71.56 features a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 24mm. This width, slightly larger than the standard 22mm, is specific to this model and requires a conscious selection of compatible straps. You can verify manually by measuring the distance between the strap attachment pins with a digital caliper.

Which strap material is best suited for the 5779.71.56?

For this Museum Collection timepiece, <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> represents the most coherent choice: it develops an organic patina over time and maintains structural rigidity even at 24mm width. Alternatively, <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned</a> calf offers tactile character without burdening proportions; for sports contexts, FKM rubber guarantees durability without aesthetic compromise.

How do I change the strap without damaging the lugs of the 5779.71.56?

Use a dedicated tool (spring bar tool) to compress the elastic pins of the attachment from the inside outward. Never hammer or force: the procedure should take less than 30 seconds per lug. If the strap is equipped with a <a href="/pages/termine-glossario/deployante">deployant clasp</a> (folding buckle), disconnect this from the leather first before proceeding with the pins.

Is there a truly compatible aftermarket strap for the 24mm lug width?

Yes, but compatibility is limited. Many brands produce 24mm straps, but few understand how to proportion the loop and buckle to this non-standard size. Milano Straps offers <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-24mm">24mm straps</a> designed expressly for watches with these proportions, verifying constructive tolerances and elastic fastening.

How long does a leather strap last for this Omega?

A quality leather strap (calf or cordovan) has an average lifespan of 3-5 years with daily use, extendable to 7-8 years with periodic maintenance (conditioning with specific creams, drying after humidity exposure). The standard artisanal warranty is 18 months, a period within which any manufacturing defects naturally emerge. Visible wear (fold marks, color variations) is normal and part of the beauty of patina development.

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