Longines · PrimaLuna

Strap for PrimaLuna Automatic 26.5 Pink Gold Leather

Takes 6 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width6 mm
Case diameter27 mm
ReferenceL8.111.8.78.2 (aka: L81118782)
FamilyPrimaLuna
MovementLongines caliber L595 hours, minutes, seconds | date
CaseRose Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The PrimaLuna L8.111.8.78.2 (aka: L81118782), seen from the bench

The PrimaLuna represents the ladies' collection of Longines, characterized by elegant lines and contained proportions. It is powered by the L595 quartz caliber with hours, minutes, seconds and date indication. The case features 6mm lugs that give the timepiece a slim and refined profile.

Frequently asked questions

What is the lug width of the Longines PrimaLuna L8.111.8.78.2?

The lug width of the Longines PrimaLuna L8.111.8.78.2 is 6 millimetres. This particularly narrow measurement is specific to this model and requires bespoke strap construction. The correct measurement is taken as the internal distance between one lug and the other, passing over the dial.

Which strap is most suitable for the Longines PrimaLuna L8.111.8.78.2?

For this 26.5mm rose gold model, the recommended strap is genuine alligator in black or natural finish, preferably with rose gold hardware. Alternatively, vegetable-tanned calf in taupe grey or cognac shell cordovan maintains aesthetic coherence. We advise against sporty or striking straps, which would compromise the jewellery-watch identity of the piece.

How do I change the strap on the Longines PrimaLuna L8.111.8.78.2?

The operation requires specialised tools: a spring bar removal tool and considerable care. Position the watch on a soft surface, locate the pins securing the strap to the lugs, extract the first pin using the remover from top to bottom, slide the strap away and repeat on the other side. We recommend having a professional perform this operation to avoid scratches on the rose gold case.

Is the Longines PrimaLuna L8.111.8.78.2 compatible with aftermarket 6mm straps?

Yes, all straps manufactured with a 6mm lug width are compatible with the L8.111.8.78.2, provided they respect the exact width and the pins are correctly dimensioned. Always verify that the strap is constructed specifically for this measurement, as 6mm is undersized compared to standard specifications (usually 18–22mm).

How long does a leather strap last on a Longines PrimaLuna?

Durability depends on material and usage patterns. High-quality alligator develops patina and remains functional for 5–7 years with daily wear. Vegetable-tanned calf has an average lifespan of 3–5 years. Shell cordovan, thanks to its density, can exceed 7 years. Frequency of wear, exposure to water and perspiration significantly influence longevity. Light wear—formal occasions only—can double these periods.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only