Mido
Belluna M024.630.22.061.00— lug 21mm

The Mido Belluna M024.630.22.061.00 features a lug width of 21 millimetres. This measurement is specific to this model and represents an intermediate standard between the more common 20 mm and 22 mm formats in the market. To verify your lug width accurately, place a digital calliper between the spring bar holes on the case: the resulting measurement will be your reference specification for purchasing a compatible strap.

The ideal strap depends upon your daily usage patterns and aesthetic preferences. For formal and professional contexts, we recommend American alligator (medium grain) or shell cordovan, both conferring elegance without decorative excess. For a more casual-sporty approach, vegetable-tanned calf in light brown tonality creates harmonious contrast with a dark dial. NATO canvas straps in robust cotton emphasise the tool watch vocation, whilst vulcanised rubber accommodates humid environments. Your choice of material should reflect your most frequent usage scenarios.

Strap replacement on a 21 mm lug width timepiece is a straightforward operation requiring no technical expertise. Obtain a quality spring bar removal tool. Position your watch on a stable surface, orient the spring bar tool toward the case spring bar, apply steady light pressure until the internal spring compresses, then extract the bar. Repeat on the second lug. Insert the new strap by aligning its holes with the bars, compress the spring bar tool again, and secure. Verify the strap is firmly anchored before wearing your watch.

Any strap with a 21 mm lug width specification is compatible with your Mido Belluna M024.630.22.061.00. This encompasses alligator, calf leather, shell cordovan, suede, NATO canvas, vulcanised rubber and silicone options. The critical factor is accurate verification of the lug width (21 mm) prior to purchase. Many manufacturers offer customisation possibilities: material colour, stitching type, buckle style (standard deployante, traditional ardillon or vintage clasp). Avoid straps measuring 20 mm or 22 mm, which would produce lateral play or excessive tension.

Leather strap longevity depends upon material selection, tanning methodology and usage intensity. A vegetable-tanned calf strap with moderate daily use typically endures 18–36 months before exhibiting wear at the repeated flex point. Shell cordovan exhibits greater longevity—lasting 4–5 years or longer—due to the dense fibrous structure of horse rump leather. Alligator provides a median lifespan of 2–3 years. Factors influencing durability include ambient humidity (humid climates shorten lifespan), wearing frequency, prolonged direct sunlight exposure and maintenance (regular cleaning with soft dry cloth extends service life). Upon reaching end-of-life, the strap may be effortlessly replaced without incurring additional watch servicing costs.