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 width
The Trésor 428.18.26.60.04.001 (aka: 42818266004001), seen from the bench
Frequently asked questions
What is the lug width of the Omega Trésor 428.18.26.60.04.001?
The Omega Trésor 428.18.26.60.04.001 has a <a href="/pages/termine-glossario/misura-ansa">lug width</a> of 13mm. This narrow dimension is typical of vintage 26mm watches and is essential to ensure correct optical proportions between case and strap. Always verify the measurement before purchasing an aftermarket strap.
Which strap material pairs best with the Trésor 428.18.26.60.04.001?
Vegetable-tanned <a href="/pages/termine-glossario/alligatore">alligator</a> is the most sophisticated choice for this model, as the reptile's regular texture amplifies the case's minimalist elegance. Fine-grain calf offers superior everyday versatility, while <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> straps guarantee a fascinating temporal patina. For sports use, a silk NATO ensures quick changes while maintaining refined aesthetics.
How do you change the strap on a watch with a 13mm lug width?
Use a dedicated tool (spring bar tool) to remove the pin from the case. Position the tool in the lateral notch of the lug, gently push to compress the spring and slide off the old strap. Insert the new strap under the lug, aligning the pin with the hole and release. The procedure requires precision to avoid scratching the case: Casati Milano atelier offers this service with meticulous craftsmanship.
Is the Trésor 428.18.26.60.04.001 compatible with standard aftermarket straps?
No, the <a href="/pages/termine-glossario/misura-ansa">13mm lug width</a> drastically limits the availability of replacement straps. Most universal straps start at 14mm or larger. On milanostraps.it you will find <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-13mm">13mm straps</a> specifically built for vintage models of this size, both in stock and customizable to exact measurements.
How long does a leather strap last on a daily-worn watch?
A <a href="/pages/termine-glossario/concia-vegetale">vegetable-tanned</a> strap on a watch worn every day develops a fascinating patina within 8-12 months, with visible wear on the shoulders after 18-24 months of regular use. <a href="/pages/termine-glossario/alligatore">Alligator</a> offers greater mechanical resistance (30-36 months), while <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a> reaches 40 months for pure durability. Casati Milano provides an 18-month warranty and offers leather restoration services after natural wear.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only