Omega · Trésor

Strap for Mini Trésor Quartz 26 Stainless Steel - Diamond / White Enamel / Bracelet

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
Reference428.15.26.60.04.003 (aka: 42815266004003)
FamilyTrésor
MovementOmega caliber 4061 hours, minutes
Year2024
CaseStainless Steel

Spring bar

Spring bars for Omega

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

The Trésor 428.15.26.60.04.003 (aka: 42815266004003), seen from the bench

The Omega Trésor 428.15.26.60.04.003 is a 26mm stainless steel dress watch featuring the Omega caliber 4061 quartz movement. This model is characterized by its distinctive 13mm lug width, a non-standard dimension that requires precise compatibility verification to ensure proper fit and structural integrity on the wrist.

Frequently asked questions

What is the exact lug width of the Omega Trésor 428.15.26.60.04.003?

The lug width of the Trésor 428.15.26.60.04.003 is 13mm, a non-standard measurement. To verify it, measure the distance between the inner through-holes of the case: it must be exactly 13mm. This dimension is essential to maintain the correct proportions on the 26mm diameter case.

What is the best strap for the Omega Trésor 428.15.26.60.04.003?

For the Trésor 428.15.26.60.04.003 we recommend an alligator or vegetable-tanned calf leather strap with delicate finishes and fine grain. These materials respect the elegant proportions of the 26mm case and age beautifully, ennobling the watch. A satin-finished steel deployant completes the ensemble without weighing down the aesthetics.

How do you change the strap on the Omega Trésor 428.15.26.60.04.003?

To change the strap: remove the watch from your wrist, locate the two pins that secure the strap to the lugs (one on each side), use a dedicated remover tool or a small screwdriver to slide the pin outward, then remove the old strap. Insert the new strap by threading one end through the hole first, align the other end and carefully reintroduce the pin. Make sure the strap is 13mm wide.

Can I use an aftermarket strap compatible with the Omega Trésor 428.15.26.60.04.003?

Yes, it is possible to use aftermarket straps as long as they strictly comply with the 13mm width. Incompatible straps or those of different width will compromise the proportions of the 26mm case and create structural stress on the lugs. Always choose straps specifically designed for this lug width.

How long does a leather strap last on the Omega Trésor 428.15.26.60.04.003?

The lifespan of a leather strap depends on the material and usage. An alligator or vegetable-tanned calf leather strap of artisanal quality lasts an average of 3-5 years of daily use, developing an increasingly noble patina. With proper maintenance (gentle cleaning, protection from rain), longevity can increase significantly. Casati Milano straps include an 18-month warranty.

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