Omega · Trésor

Strap for Mini Trésor Quartz 26 Moonshine Gold - Diamond / Moonshine Gold

Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width13 mm
Case diameter26 mm
Reference428.57.26.60.99.001 (aka: 42857266099001)
FamilyTrésor
MovementOmega caliber 4061 Hours, Minutes
CaseMoonshine Gold

Spring bar

Spring bars for Omega

The right category for this model · choose the 13 mm size

The Trésor 428.57.26.60.99.001 (aka: 42857266099001), seen from the bench

The Omega Trésor 428.57.26.60.99.001 is a 26mm ladies' luxury watch featuring the exclusive Moonshine Gold case material. Powered by Omega caliber 4061, this quartz movement provides essential timekeeping functions. The watch features a 13mm lug width, a specific measurement critical for strap compatibility. Moonshine Gold, Omega's proprietary alloy, resists oxidation and fading while developing a unique patina over time.

Frequently asked questions

What is the lug width of the Omega Trésor 428.57.26.60.99.001?

The lug width of the Trésor 428.57.26.60.99.001 is 13 millimetres. This specific width reflects the refined proportions of the 26mm case and is a critical parameter to ensure compatibility with any aftermarket strap. Measure the accuracy with a digital calliper before purchasing, verifying the distance between the two case lugs.

Which strap material pairs best with the Moonshine Gold of the Trésor?

Dark brown alligator (chocolate or cognac) represents the most refined pairing, creating natural visual synergy with the Moonshine Gold. Alternatively, vegetable-tanned calf offers minimalism and elegance, while quality rubber ensures daily versatility. For formal contrast, black alligator remains a deliberate choice for evening occasions.

How do you change the strap on an Omega Trésor?

The Trésor uses standard two-pin lugs. Obtain a spring bar tool and a clean work surface. Position the tool under one of the case lugs, apply gentle vertical pressure to release the pin, then remove the used strap. Repeat with the second pin, then insert the new strap by aligning it with the lugs and pressing until the locking click is heard.

Can I use aftermarket straps for my Trésor 428.57.26.60.99.001?

Yes, any strap with a 13mm lug width is compatible. It is essential to verify that the width matches exactly to avoid rubbing against the precious Moonshine Gold case. Milano Straps offers a complete selection of 13mm straps, from fine alligator to NATO, all tested for compatibility and build quality.

How long does a leather strap last on a watch like this?

A quality leather strap, such as alligator or calf, typically lasts 3-5 years with moderate daily use, considering reasonable exposure to moisture and perspiration. Durability depends on frequency of wear, climate, and maintenance (avoid prolonged soaking). Casati Milano guarantees 18 months on made-to-measure straps, reflecting the artisanal build quality employed.

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