Strap for PrimaLuna Quartz 26.5 Stainless Steel / Pink Gold / Diamond / MOP / Bracelet

The lug width of the Longines PrimaLuna L8.110.5.89.6 is precisely 6mm. This is a rigid specification: any compatible strap must have lugs (attachment pins) exactly 6mm wide. An incorrect width will not fit the case's lug holes and risks causing damage. You can verify this dimension by consulting the original Longines manual or measuring directly between the case shoulders.

For the mother-of-pearl dial of the PrimaLuna L8.110.5.89.6, we recommend alligator or calf leather with vegetable tanning. Alligator offers classical refinement through its natural granular texture, which dialogues perfectly with the mother-of-pearl. Vegetable-tanned calf leather presents a more uniform surface and develops a fascinating patina over time. Avoid synthetic leather straps, which age poorly and contradict the quality of the case.

To change the strap, use a specialised spring bar tool. Position the tool's tip in the small lateral slot of the case lug pin, pushing gently to compress the internal spring and slide the pin out. Once freed, remove the old strap and insert the new one, aligning the lugs with the case's attachment holes. Repeat on the other side. If uncertain, consult a professional watchmaker to avoid damaging the case.

Yes, you can use high-quality aftermarket straps provided they respect the 6mm lug width specification. milanostraps.it offers artisanal straps constructed to this exact tolerance, crafted in natural leather with vegetable tanning, shell cordovan, or alligator. A well-made aftermarket strap often provides greater customisation (colour, length, stitching thread) than the original whilst maintaining full compatibility. Always confirm with the seller that the lug width is correctly specified.

A high-quality natural leather strap, such as those crafted with vegetable tanning, typically lasts 5–7 years with regular daily use. Longevity depends on frequency of wear, exposure to moisture and heat, and maintenance practices. Vegetable-tanned leather improves aesthetically over time, developing a unique patina. Avoid prolonged water exposure and occasionally apply a specific balm to preserve softness. When the strap loses elasticity or shows cracks, replacement is advisable to maintain case integrity and attachment mechanism reliability.