Mido · Belluna

Strap for Belluna Sunray Stainless Steel / Blue / Bracelet

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

Lug width21 mm
Case diameter43 mm
ReferenceM024.630.11.041.00
FamilyBelluna
MovementETA caliber C07.621 hours, minutes, seconds | date, day
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 Belluna M024.630.11.041.00

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Belluna M024.630.11.041.00, seen from the bench

The Belluna represents Mido's dress watch line, characterized by a classic design with hour, minute, second, date and day of the week indication. It houses the automatic caliber ETA C07.621 with essential functions for daily use. The case features 21mm lugs for the strap.

Frequently asked questions

What is the lug width of the Mido Belluna M024.630.11.041.00?

The lug width of the Mido Belluna M024.630.11.041.00 is 21mm. This measurement determines the compatibility of all aftermarket straps: always ensure that your chosen strap is certified for this exact dimension, as even minor variations would result in insufficient wrist stability and unreliable seating between the case lugs.

Which strap is recommended for the Mido Belluna?

The Mido Belluna is particularly enhanced by alligator or shell cordovan straps for formal occasions, vegetable-tanned calf for versatile versions that develop natural patina over time, and cotton-nylon NATO straps for sporty and casual profiles. The 42.50mm stainless steel case requires generously proportioned straps: we advise against thin or delicate materials that would visually unbalance the case proportions.

How do I change the strap on my Mido Belluna M024.630.11.041.00?

The procedure requires specific tools to remove the lugs (spring bars): position your watch on an anti-scratch cloth, use a spring bar tool to gently compress the elastic pin of the lug, and carefully slide the bar outward. Subsequently, position the new strap between the two lugs, ensuring that the elastic pin clicks correctly into place. We recommend working in a well-lit environment and never forcing movements to avoid case damage.

Are there compatible aftermarket straps available for the Belluna?

Yes, an extensive range of aftermarket straps compatible with the 21mm lug width is available. You can choose from various material families (leather, rubber, NATO fabric) and colours. What matters is always verifying that the manufacturer certifies 21mm compatibility, as proper fit between strap and lugs is essential for safety and functionality of the watch over time.

How long does a leather strap last on the Mido Belluna?

The lifespan of a leather strap depends on usage and maintenance factors. A high-quality vegetable-tanned calf strap, with moderate use (3-4 times weekly) and regular maintenance, can last 2-4 years before showing significant wear such as thinning or cracking. Alligator and shell cordovan, being more resilient, can extend to 5-6 years. Storage in dry environments and avoiding prolonged moisture contact accelerates material longevity.

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