Strap for Belluna Sunray Stainless Steel / Grey / Bracelet

The lug width of the Mido Belluna M024.630.11.061.00 is 21 mm. This measurement refers to the distance between the two spring bars that attach the strap to the case. Accurate measurement using a digital calliper is essential to ensure compatibility of replacement straps. Even a 1 mm discrepancy (such as 20 mm or 22 mm) will prevent proper installation.

The Belluna accommodates multiple interpretations depending on the context of use. For formal settings, a strap in alligator or vegetable-tanned calf leather in dark tones (brown, black) enhances the brushed stainless steel case and conveys authority. For everyday versatile wear, medium-weight calf in cognac or burgundy offers comfort and durability. For humid seasons or recreational activities, structured rubber or a robust NATO textile strap provides practicality without aesthetic compromise. Your choice depends on your sartorial style and frequency of wear.

Strap replacement is a delicate operation requiring correct tools: a spring bar tool and a stable work surface. Position the watch with one case lug slightly overhung, insert the tool into the end of the spring bar (the small metal spring that holds the strap), lift gently until the pin exits its seat in the case. Repeat on the opposite side. Align the new strap's pins with the case seats and press until you hear a 'click'. If unsure, consult a professional watchmaker: the risk of scratching the case is substantial for inexperienced hands.

Yes, the Belluna is fully compatible with quality aftermarket straps manufactured to 21 mm lug width specifications. Selecting an artisanal strap (such as those provided by MilanoStraps) offers distinct advantages: conscious material selection, transverse finishing (hand-stitched seams, bevelled edges), optionality in buckle design and keeper structure. An artisanal strap transforms the tactile and aesthetic experience of the watch, amplifying the constructive details of the Mido case without altering its core identity.

Leather strap longevity depends on three factors: tanning quality, frequency and conditions of wear, preventative maintenance. A medium-to-high quality vegetable-tanned leather strap (calf, Mississippi alligator) worn occasionally or in temperate climates exhibits functional life of 3–5 years. If constantly exposed to moisture, perspiration, or significant thermal variation, deterioration accelerates to 18–24 months. Proper maintenance—periodic drying, occasional conditioning with neutral creams, storage in dry environments—can extend lifespan by 12–18 months. Rubber or NATO straps have comparable lifespan but degrade differently: rubber loses elasticity, NATO wears at flex points.