Mido · Ocean Star

Strap for Ocean Star Tribute Stainless Steel / Blue

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter40 mm
ReferenceM026.830.11.041.00
FamilyOcean Star
MovementETA caliber C07.621 hours, minutes, seconds | date, day
Year2019
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Ocean Star M026.830.11.041.00

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Ocean Star M026.830.11.041.00, seen from the bench

The Mido Ocean Star M026.830.11.041.00 is a 40.50 mm stainless steel cushion-case diver from the 1960s era. It features an ETA C07.621 automatic movement with 28,800 vph, hour/minute/second hands, and date/day windows at 3 and 9 o'clock. Water-resistant to 300 meters, it has a sapphire crystal and screw crown. The 21 mm lug width is proportioned for this specific case geometry, weighing approximately 95 grams.

Frequently asked questions

What is the lug width of the Mido Ocean Star M026.830.11.041.00?

The lug width of the Mido Ocean Star M026.830.11.041.00 is 21 mm. This measurement represents the internal distance between the two lugs (attachment points) on the watch case where the strap is inserted. To measure correctly, use a digital calliper and measure from the centre of one lug's inner edge to the centre of the opposite lug's inner edge. All 21 mm straps are compatible with this model.

Which strap is best suited for the Mido Ocean Star M026.830.11.041.00?

The Mido Ocean Star M026.830.11.041.00, given its sport-elegant vocation, pairs ideally with structured alligator straps (for formal occasions), shell cordovan (for those who appreciate chromatic evolution over time), vegetable-tanned calf leather (aesthetic and functional compromise), or vulcanised rubber (for frequent aquatic environments). Your choice depends on primary use: business meetings → black alligator; recreational diving → black or navy rubber; versatile daily wear → brown or navy calf.

How do you change the strap on the Mido Ocean Star M026.830.11.041.00?

Strap replacement requires a specific tool: a spring bar tool (a dedicated screwdriver for suspension springs). Position the Mido M026.830.11.041.00 with the case facing upwards, insert the tool's tip into the small lateral hole of the lug to compress the internal spring, then extract the pin. Repeat on the other side. Insert the new strap's pins, aligning them with the case's attachment holes, then release the springs. Avoid excessive force: the cushion lugs are robust but require care during extraction.

Can the strap on the Mido Ocean Star M026.830.11.041.00 be replaced with an aftermarket model?

Absolutely. Any strap with a 21 mm lug width is compatible with the Mido M026.830.11.041.00. High-quality aftermarket straps (structured leather, rubber, NATO fabric) offer greater aesthetic variety and often superior durability compared to original straps. Verify that the strap's tip is sufficiently thin to penetrate the case's attachment lugs smoothly and that the terminal oval is compatible with the lug diameter (typically 1.5 mm).

How long does a leather strap last on the Mido Ocean Star M026.830.11.041.00?

Durability depends on tanning method and usage. A vegetable-tanned calf strap, with regular maintenance (monthly cleaning, quarterly conditioning with neutral creams), lasts 3–5 years of daily wear. Alligator, more structurally resistant, can last 5–7 years. Shell cordovan, whilst robust, ages visibly—a characteristic best appreciated as aesthetic evolution rather than defect. Vulcanised rubber, protected from UV rays and humidity, lasts 4–6 years. Avoid prolonged direct moisture exposure (showering, bathing) and store the strap in a dry environment.

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