Strap for PrimaLuna Automatic 26.5 Pink Gold Leather MOP

The lug width of the Longines PrimaLuna L8.111.9.87.2 is precisely 6mm. This non-standard size requires careful selection of aftermarket straps, as not all manufacturers stock this dimension. To verify compatibility, measure the inner distance between the two lugs using a digital calliper: this measurement is your lug width.

For the rose gold case, warm-toned straps are most appropriate. Alligator in cognac or honey tones amplifies the luxurious character; vegetable-tanned calf leather in medium tan develops a natural patina over time; shell cordovan, which transitions from brown to burgundy, creates elegant material contrast. Black or cool-toned rubber straps are discouraged, as they neutralise the warmth of the case.

Strap replacement requires a spring bar remover tool. Position yourself in good light and insert the tool into the shallow groove beneath the spring bar (the small elastic pin connecting the case and strap). Apply gentle pressure to compress the spring, then withdraw the spring bar. Repeat on the other side. Install the new strap by reversing the procedure. If unfamiliar with this process, consult a professional watchmaker to avoid damaging the lug holes.

Any genuine leather or premium material strap with a 6mm lug width is compatible. Milano Straps offers a specialised collection of 6mm straps in alligator, calf leather, shell cordovan, and textile materials. Compatibility is determined by lug width: the inner holes of the strap must be spaced exactly 6mm apart. Avoid generic straps from mass-market retailers, where manufacturing tolerances may cause instability.

Strap longevity depends on material, frequency of wear, and maintenance. A vegetable-tanned calf strap typically lasts 3–5 years of daily wear before replacement; alligator resists degradation for 5–7 years due to its denser fibrous structure; shell cordovan, the most durable material, may last 7–10 years. Humidity, perspiration, and sunlight exposure accelerate ageing. Rotating between two straps significantly extends the lifespan of both.