Strap for PrimaLuna Automatic 30 Yellow Gold Diamond MOP

The lug width of the Longines PrimaLuna L8.113.7.87.6 is 8 millimetres. This measurement represents the internal distance between the two lugs of the case and determines strap compatibility. To verify this accurately, use a digital caliper positioned perpendicularly to the lugs, measuring from inner edge to inner edge, with no strap already installed.

For the yellow gold Longines PrimaLuna L8.113.7.87.6, we recommend straps in alligator leather in cognac dark or tobacco brown tones, or calf leather with vegetable tanning that will develop a warm patina synchronised with the natural oxidation of the gold. Shell cordovan represents a premium option for those seeking structural longevity exceeding twelve years. Avoid very light or brilliant colours that would compete with the intrinsic luminosity of the gold.

To change the strap, you must remove the spring bars that connect the strap to the lugs. Use a spring bar tool to apply controlled pressure on the pin, depressing it slightly until it extracts from its seat. Subsequently, remove the old strap from the lugs and insert the new one, ensuring the spring bars snap into the lateral holes. This operation requires delicacy to prevent scratches on the yellow gold case.

Yes, the Longines PrimaLuna L8.113.7.87.6 is fully compatible with quality artisanal aftermarket straps, provided they respect the 8-millimetre lug width. Straps crafted from natural leather with hand stitching, precise finishing and bespoke production offer an excellent alternative to original straps, often with greater aesthetic personalisation and superior durability. Always verify that the strap width corresponds exactly to 8mm before purchase.

The lifespan of a natural leather strap depends on leather quality and usage conditions. A well-crafted alligator or shell cordovan strap lasts between 5 and 12 years with ordinary care. Calf leather with vegetable tanning typically resists 4-7 years. Frequent exposure to water, sweat and ultraviolet rays significantly shortens useful life. High-quality artisanal straps, made with traditional techniques, typically exceed the longevity of industrial straps.