Strap for PrimaLuna Automatic 30 Yellow Gold Diamond Leather

The lug width of the Longines PrimaLuna L8.113.7.78.2 is 8mm. This reduced width is characteristic of Longines' women's models and is essential for selecting compatible straps. To verify it, measure the internal distance between the two lugs using a digital calliper or precision ruler.

For the Longines PrimaLuna L8.113.7.78.2 in yellow gold, alligator leather in cognac, medium brown, or black shades represents the most aesthetically coherent choice. Alternatively, vegetable-tanned calf leather offers timeless elegance, whilst shell cordovan guarantees exceptional durability. NATO is recommended only for those seeking a more contemporary and casual interpretation.

Strap replacement requires the removal of the lugs using a specialised spring bar removal tool. The process involves gently removing the fixing pins, extracting the old strap, and inserting the new one into the same seats. It is advisable to entrust this operation to a professional to avoid damage to the yellow gold case. Casati Milano offers personal installation service at its atelier by appointment.

Yes, quality aftermarket straps are fully compatible with the Longines PrimaLuna L8.113.7.78.2, provided they respect the 8mm lug width. It is essential to verify the specific size before purchase. Milano Straps offers a complete collection of artisanal 8mm straps that are customisable, including bespoke models created by Casati Milano with personal leather selection.

Durability depends on the material and usage. An alligator or vegetable-tanned calf leather strap typically lasts 3-5 years of daily wear, developing a natural patina appreciated by collectors. Shell cordovan, thanks to its fibrous structure, can last 10-15 years. Regular maintenance—gentle cleaning and conditioning with specialised products—significantly extends the lifespan of any strap.