Strap for PrimaLuna Quartz 30 Stainless Steel / Pink Gold / Diamond / White

The lug width (strap lug distance) of the Longines PrimaLuna L8.112.5.19.2 is 7mm. It is measured from the inner shoulder of one lug to the other, excluding the anchor bushings. This reduced dimension is proportional to the 30mm case diameter and requires straps specifically engineered with lugs calibrated for 7mm compatibility.

Alligator leather with vegetable tanning represents the most coherent choice for this luxury model: the natural grain dialogue elegantly with the case geometry and mother-of-pearl dial. Alternatively, embossed or smooth calf leather offers versatility and comfort, whilst shell cordovan is ideal for those seeking a noble patina over time. Satin-finish rubber is appropriate for sports contexts whilst maintaining essential elegance.

Strap replacement uses a spring bar removal tool or small screwdriver. Identify the small movable pin beneath each lug, gently push it towards the opposite side to release the spring anchor, then extract the strap. Repeat on the other side. Installation of the new strap follows the reverse process, ensuring the spring anchors are correctly seated in their grooves.

Yes, absolutely. The essential requirement is that the strap be engineered with 7mm lugs—a specific dimension that is not standard in the generic market. Milano Straps offer certified compatibility with customisable sizes, materials, and personalisation options including initials and thread colour. Atelier Casati Milano also creates bespoke solutions by appointment with an 18-month warranty.

A quality leather strap (alligator, calf, or shell cordovan with vegetable tanning) maintains optimal performance for 3 to 5 years with regular use and proper maintenance. Longevity depends on frequency of wear, exposure to moisture and heat, and periodic cleaning. The leather naturally develops patina over time, and when the strap reaches end of life, it is easily replaceable without compromising the watch's value.