Strap for PrimaLuna Quartz 30 Stainless Steel / Diamond / MOP

The lug width of the Longines PrimaLuna L8.112.0.87.2 is 7mm. This specific measurement defines the space between the two case lugs and determines strap compatibility. It is a relatively uncommon specification in the aftermarket strap market, so precision measurement using a digital calliper or flexible ruler is advisable before purchase.

Alligator is the most natural choice for the PrimaLuna from both aesthetic and qualitative perspectives. The fine texture of alligator complements perfectly the delicate proportions of the 30mm case, creating visual continuity. High-quality alternatives include vegetable-tanned calf leather for those preferring materials that develop patina over time, or shell cordovan for those seeking supreme compactness and natural lustre.

Strap replacement involves removing the spring bars that connect the strap to the case. Use a dedicated spring bar tool: position it beneath the pin, apply gentle downward pressure, and slide the strap out of the lug. Repeat for both sides. Installation of the new strap follows the reverse procedure. It is advisable to perform this operation on a soft surface (silicone mat) to avoid scratching the case.

All standard 7mm straps are compatible with the Longines PrimaLuna L8.112.0.87.2. Milano Straps offers a dedicated collection of 7mm straps in various materials: alligator, calf, shell cordovan, NATO, and technical rubber. For guaranteed compatibility, always verify on the website that the strap is explicitly declared for 7mm lug width before purchase.

The lifespan of a leather strap depends on the quality of the material, the tanning process, and intensity of use. A high-quality alligator or calf strap can last 5-10 years with daily wear and regular maintenance. Shell cordovan, owing to its natural compactness, tends to last even longer. Periodic maintenance—gentle cleaning, air drying, and occasional conditioning—significantly extends the strap's lifespan.