Strap for All Dial Chronometer Stainless Steel / Black

The Mido All Dial M8340.4.18.19 features a lug width of 24mm. This measurement is determined by the distance between the spring bar holes on the sides of the 42mm case. Accurate measurement requires a digital calliper positioned precisely between the two lugs; the value must be exactly 24mm to ensure compatibility with aftermarket straps.

The choice depends on your lifestyle and aesthetic preference. An alligator leather with vegetable tanning in black or brown provides gravitas and natural patina development over time. Smooth calf leather in cognac or warm tobacco offers daily comfort and warmth. A NATO strap in woven cotton introduces informal versatility. FKM rubber ensures technical ergonomics without pretence. The M8340.4.18.19, with its Bauhaus design, pairs elegantly with any of these options, provided they are manufactured to 24mm width.

The strap is replaced by removing the spring bars (or solid pins) that secure it to the case. Use a dedicated tool (spring bar tool) to lift the bar from one side, easing it out of the lug hole. Repeat on the opposite side. Once the old strap is removed, align the new strap by inserting one spring bar first, then the other, ensuring both click firmly into position. Verify that the lug width is 24mm before proceeding.

All straps equipped with 24mm lugs are compatible with the M8340.4.18.19. This includes alligator leather, calf, shell cordovan, NATO fabric, FKM rubber, polyester, suede, and canvas straps. Compatibility depends solely on lug width; length and thickness adapt to the case proportions without structural issues. Milano Straps offers a dedicated selection of 24mm straps suited to this model.

A noble leather strap (alligator, full-grain calf, vegetable-tanned shell cordovan) typically lasts between 18 and 36 months under daily wear. Longevity depends on: frequency of use, moisture exposure, periodic maintenance (cleaning, application of neutral oils), and tanning method. Thick, vegetable-tanned leather ages more slowly than thin industrially-tanned hide. Artisanal quality and regular cleaning significantly extend the strap's useful life.