Strap for PrimaLuna Automatic 26.5 Yellow Gold Leather

The lug width of the Longines PrimaLuna L8.111.6.78.2 is precisely 6mm. This measurement represents the distance between the inner points of the watch case's lugs and is critical for selecting a compatible strap. No tolerance margin is acceptable: a 6.5mm or 5.5mm strap would generate friction or empty gaps, compromising both aesthetics and wearing stability.

For the Longines PrimaLuna L8.111.6.78.2 in yellow gold, the most suitable strap is alligator in black or brown, which dialogues naturally with the warm tone of gold without chromatic dissonance. Alternatively, calf leather with vegetable tanning offers a natural patina that ages harmoniously, or shell cordovan for those who appreciate thick textures and natural lustre. Steel or titanium straps are discouraged, as these materials conflict with the precious aesthetic of the case.

Strap replacement is performed using a spring bar tool to remove the springs securing the strap to the lugs. Position the tool under the spring, push it downward, and the strap will detach. The reverse process secures the new strap: insert the springs into the new strap's loops and push them upward until the locking click is felt. We recommend having a watchmaker perform this operation to avoid damage to the case's finishing.

Yes, 6mm straps are widely available in the aftermarket. Milano Straps offers artisanal straps online specifically for this measurement, customizable in length, initials, and stitching type. For a complete bespoke experience, the Casati Milano atelier crafts straps to order, allowing direct leather selection with 18 months warranty and updates during production.

The lifespan of a leather strap depends on the material and usage. A quality alligator strap, with modern tanning, typically lasts 3-5 years of daily wear, developing a natural patina that enhances its character. Shell cordovan, thanks to fibre density, can exceed 5-7 years. Vegetable tanned leather ages more rapidly but in a fascinating way, showing creases and darkening that many enthusiasts consider a virtue. Excessive moisture, salt sweat, and intense sunlight accelerate ageing; regular maintenance (cleaning, and occasionally a water-resistant treatment) extends the strap's operational life.