Strap for PrimaLuna Quartz 30 Stainless Steel / MOP

The Longines PrimaLuna L8.112.4.87.2 features a lug width of 7mm. This measurement is specific to the model and results from carefully proportioned design that complements the compact 30mm case. To verify correct measurement, use a digital calliper and measure the distance between the inner shoulders of the lugs at their deepest point.

For the PrimaLuna, we recommend genuine alligator straps for formal occasions, satinised calf leather for daily wear, or shell cordovan if you prefer patina that develops over time. Black alligator is ideal for evening, whilst warm cognac brown creates a refined dialogue with the mother-of-pearl dial. All straps must have a 7mm lug width for proper compatibility.

Removing the strap requires a specific tool (spring bar tool) or the assistance of a watchmaker. Position the watch on a soft surface with the strap facing upward. Insert the tool into the small hole on each lug, press gently inward to release the pin, then slide the old strap away. Insert the new strap ensuring the springbars sit fully within the lug holes until you feel the click of closure.

Yes, absolutely. Certified quality aftermarket straps—crafted from genuine alligator, selected calf leather, or shell cordovan with vegetable tanning—are completely compatible with the PrimaLuna provided the lug width is precisely 7mm. Milano Straps offers a dedicated collection of 7mm-width straps capable of enhancing your watch beyond factory options.

The longevity of a leather strap depends on material quality, frequency of use, and care. A high-quality alligator strap lasts approximately 5–7 years with moderate daily wear. Shell cordovan can exceed 10 years. Standard calf typically reaches 3–4 years. Ageing is natural and desirable in vegetable-tanned leathers: the patina that develops testifies to material authenticity. To extend lifespan, avoid prolonged exposure to water, humidity, and direct heat.