Strap for PrimaLuna Automatic 26.5 Stainless Steel / Diamond / MOP / Bracelet

The lug width of the Longines PrimaLuna L8.111.0.87.6 is 6.00mm. This measurement is critical for selecting a compatible strap: it must match precisely the internal distance between the case lugs. Straps that do not conform to this specification will result in excessive play or mounting incompatibility.

Alligator leather with vegetable tanning is the most aesthetically coherent choice for the PrimaLuna: the regular grain pattern and the patina that develops over time maintain the minimalist elegance of the case. Vegetable-tanned calf offers greater chromatic versatility and a uniform surface. For demanding daily use, rubber or technical textile straps provide practicality without visual compromise.

Strap replacement requires a specialist tool (spring bar tool) to compress the small metal springs that secure the strap to the case lugs. Compress the spring bar laterally, remove the old strap, then insert the new one by aligning the pins with the case apertures until you feel a distinct click. If you lack experience, entrust the operation to a qualified watchmaker to avoid case damage.

Yes, any strap with a 6.00mm lug width is mechanically compatible. However, to ensure aesthetic coherence with the PrimaLuna's elegance and construction quality comparable to the watch itself, it is essential to rely on specialist suppliers who understand premium materials and appropriate finishes for this timepiece. A low-quality aftermarket strap can undermine the luxury impression of the watch.

A quality leather strap (alligator or vegetable-tanned calf) has an average lifespan of 3–5 years with moderate daily wear. Longevity depends on factors such as frequency of use, exposure to moisture, perspiration, and UV radiation. Vegetable-tanned leather ages elegantly, developing a patina that enhances its character; however, after several years of wear, the strap will weaken and replacement becomes necessary. Regular maintenance (drying after water contact and periodic conditioning) significantly extends strap life.