Strap for PrimaLuna Quartz 23 Pink Gold

The lug width of the Longines PrimaLuna L8.109.8.78.6 is 6mm. This measurement represents the internal distance between the two lugs of the case and corresponds to the strap passage width. It is a dimension precisely engineered to maintain visual balance proportional to the 23mm case diameter.

For a rose gold timepiece like the PrimaLuna, alligator leather offers the most harmonious solution due to its grain texture reflecting light similarly to the warm tones of rose gold. An alligatore strap in vegetable-tanned cognac or ivory creates sophisticated visual dialogue with the case. Alternatively, calf leather in bordeaux or ivory tonalities allows the leather colour to take prominence whilst maintaining formal balance.

To measure the lug width, use a digital calliper or flexible ruler. Insert the measuring tool into the strap passage (the groove between the two lugs) and record the internal distance. The measurement must be 6mm with a maximum tolerance of ±0.2mm. Inaccurate measurements result in incompatible straps.

Yes, any strap with a 6mm lug width is mechanically compatible. However, aesthetic compatibility depends on colour choice and material selection. Milano Straps offers aftermarket straps in alligator, calf, and shell cordovan specifically dimensioned for the PrimaLuna, plus bespoke customisation services through the Casati Milano atelier.

A high-quality leather strap—alligator, vegetable-tanned calf, or shell cordovan—typically lasts 3-5 years with regular maintenance. Longevity depends on frequency of wear, humidity exposure, and leather breathability. Milano Straps provides an 18-month warranty on bespoke straps with options for regeneration and restoration at the atelier.