Strap for PrimaLuna Quartz 26.5 Stainless Steel / Yellow Gold / Silver - Roman

The lug width of the Longines PrimaLuna L8.110.5.91.2 is 6 mm. This is an ultraslim specification, deliberately designed to maintain harmonious proportions with the 26.50 mm case diameter. Always measure the lug internally, between the two shoulders of the lug, using a digital calliper or flexible ruler for precision.

We recommend alligator with vegetable tanning or exceptionally fine calf leather. Alligator maintains a fine, regular grain that ages magnificently, developing patina without deterioration. Vegetable-tanned calf offers more visible texture and colour depth that evolves over time. Avoid thick straps: at 6 mm lug width, proportionality demands a slender profile.

Strap changes occur via standard spring bars. Use a spring bar tool to gently compress the spring inward, releasing the strap end from the lug. Repeat on the other side. Insert the new strap, aligning the lug to the hole, then release the spring. On delicate watches such as the PrimaLuna, we recommend entrusting this operation to a professional to avoid scratching the bezel or case.

Yes, provided the lug width is exactly 6 mm. Always verify this specification before purchase. Quality aftermarket straps—such as alligator or shell cordovan—often offer artisanal finishing and personalisation options that original straps do not provide. Ensure the spring bars are removable and that the strap presents an anatomical curve compatible with your wrist anatomy.

Longevity depends on leather quality and intensity of wear. Alligator or shell cordovan with vegetable tanning typically lasts 3–5 years of daily wear, developing progressive patina. Fine calf varies between 2–4 years. Natural leather wears—lug edges fray against the strap, buckles wear—but these marks form part of the object's narrative. Artisanal leather straps of superior quality are repairable and re-stitchable, extending life to 10+ years with proper maintenance.