Strap for PrimaLuna Automatic 30 Diamond

The lug width is exactly 8mm, measured between the inner attachment lugs. This non-standard dimension is proportioned to the case diameter of 30mm. Correct measurement requires positioning a digital calliper within the inner lug seat, not the apparent strap width. Tolerances exceeding 0.5mm generate visual instability.

Alligator with vegetable tanning represents the optimal formal choice: natural grain communicates authenticity and patina develops throughout use. Alternatively, Taurillon calf offers minimalist elegance with regular flame. For contemporary contexts, solid-colour calf in black, dark cognac or deep blue ensures chromatic consistency. The 8mm lug width requires strap thickness between 3.5 and 4.5mm for case-to-strap equilibrium.

Strap replacement requires a specialised spring bar tool or qualified watchmaker intervention. Insert the tool beneath the inner lug from the lower case side, apply moderate pressure to compress the spring, then remove the strap from the first side. Repeat from the opposite side. During reassembly, position the new strap in the slots, align the lug, press gently until the retention click. On an 8mm lug width, precision is critical.

Yes, provided the lug width is strictly 8mm. Universal straps in 20mm or 22mm dimensions are incompatible. Milanostraps offers artisanal straps constructed to measure for this specific width, in authentic materials (alligator, calf, shell cordovan) with personalisation of length, initials and stitching type. Manufacturing quality guarantees compatibility and durability.

A high-quality leather strap, with vegetable tanning and full-grain leather, typically lasts 3–5 years with daily wear. Longevity depends on humidity, frequency of use and maintenance. Avoid prolonged water immersion and dry rapidly after moisture contact. Vegetable-tanned leather develops patina that increases aesthetic value over time. Superior-quality straps in alligator or shell cordovan can last 7–10 years with proper care.