Omega · Trésor

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

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
Reference428.17.26.60.04.004 (aka: 42817266004004)
FamilyTrésor
MovementOmega caliber 4061 Hours, Minutes
CaseStainless Steel

Spring bar

Spring bars for Omega

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

The Trésor 428.17.26.60.04.004 (aka: 42817266004004), seen from the bench

The Omega Trésor 428.17.26.60.04.004 is a 26mm stainless steel women's watch from the 1990s, featuring the Omega caliber 4061 quartz movement with hours and minutes. The case measures 26mm in diameter with a refined, minimalist dial design typical of Omega's philosophy for refined proportions. This model requires a 13mm lug width, a precise specification that defines the relationship between case and wrist, distinguishing it from larger Omega sports models.

Frequently asked questions

What is the lug width of the Omega Trésor 428.17.26.60.04.004?

The lug width of the Omega Trésor 428.17.26.60.04.004 is 13 millimetres. This measurement is specific to this model and is essential for ensuring correct strap compatibility. Always verify this dimension using a digital calliper or by contacting Omega's service department with the reference number before purchasing a replacement strap.

What type of strap is most suitable for the Trésor 428.17.26.60.04.004?

For the Trésor, we recommend noble materials such as alligator, which accentuates the pure geometry of the case, or shell cordovan, which develops a rich patina over time. A calf leather with vegetable tanning represents the versatile compromise between elegance and durability. Choice depends on usage: cordovan for formal occasions, calf for daily wear, rubber for sportwear applications.

How do you change the strap on the Omega Trésor 428.17.26.60.04.004?

To change the strap, you must remove the springbars connecting the strap to the case. Use a specialised tool to extract them gently, then insert the new strap by aligning the holes with the lugs. Ensure the strap is of the correct width (13mm) and that the springbars click securely into position. If you lack experience, Casati Milano's atelier offers professional installation services.

Can you use an aftermarket strap compatible with the 428.17.26.60.04.004?

Yes, you may use aftermarket straps provided they are specifically constructed for a 13mm lug width. Milano Straps offers handcrafted straps customisable in leather, colour, and length, ensuring maximum compatibility and construction quality. Always verify that the strap width corresponds to your lugs before purchase.

How long does a leather strap last on the Omega Trésor 428.17.26.60.04.004?

The lifespan of a leather strap depends on material and usage. High-quality alligator or shell cordovan, with periodic care, lasts 3–5 years under daily wear conditions. Vegetable-tanned calf tends to wear slightly faster, lasting approximately 2–4 years. Milano Straps provides an 18-month guarantee on custom-made straps and offers maintenance and replacement services.

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