Strap for PrimaLuna Quartz 26.5 Stainless Steel / MOP

The lug width of the Longines PrimaLuna L8.110.4.87.2 is 6mm. This is the precise distance between the internal anchoring points of the lugs. You can verify this using a digital calliper, keeping the tool parallel to the dial. Straps designed for 6mm ensure accurate insertion without lateral play or wobbling.

For the Longines PrimaLuna L8.110.4.87.2, alligator leather represents the most refined choice, particularly in cognac brown or black tones. Vegetable-tanned calf leather offers a patina that evolves naturally over time. For daily versatile wear, NATO canvas or FKM rubber straps provide practicality whilst maintaining elegance. Your choice depends on intended usage and personal colour preferences.

Changing the strap on your Longines PrimaLuna L8.110.4.87.2 requires a spring bar tool. Position your watch on a soft surface for protection, then insert the tool under the spring bar on the opposite side from the strap and press downward until the retaining button releases. Remove the lug and repeat on the opposite side. Reinstall by reversing the procedure. If uncertain, strap-change services are available at Casati Milano atelier.

Yes, numerous aftermarket straps are compatible with the Longines PrimaLuna L8.110.4.87.2 thanks to the standard 6mm lug width. Milano Straps offers a dedicated collection of artisanal 6mm straps in various leathers including alligator, calf, cordovan, NATO canvas, and rubber. All straps are compatibility-tested and customisable in length, stitching colour, and initials.

The lifespan of a leather strap depends on usage intensity, climatic conditions, and leather quality. An alligator or vegetable-tanned calf strap, worn moderately (3–4 days weekly), maintains structural integrity for 5–8 years. Natural leather ages visibly, which is desirable and expected. Regular maintenance (soft cloth cleaning, drying after moisture exposure) significantly extends longevity. Casati Milano straps include an 18-month warranty.