Longines · PrimaLuna

Strap for PrimaLuna Quartz 23 Two Tone Pink

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

Lug width6 mm
Case diameter23 mm
ReferenceL8.109.5.78.6 (aka: L81095786)
FamilyPrimaLuna
MovementLongines caliber L963 Hours, Minutes | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The PrimaLuna L8.109.5.78.6 (aka: L81095786), seen from the bench

The PrimaLuna represents the women's collection of Longines characterized by curved lines and elegant design. It features the L963 quartz movement with hour, minute and date indication. The case has 6mm lugs and an integrated bracelet following the typical design of the line.

Frequently asked questions

What is the lug width of the Longines PrimaLuna L8.109.5.78.6?

The Longines PrimaLuna L8.109.5.78.6 features a 6mm lug width, a dimension proportioned to the 23mm oval case. This specific measurement ensures that the strap does not overhang the case shoulder, maintaining the watch's visual balance. The lug width can be measured using a digital calliper inserted at the base of the strap attachment.

Which strap is best for the Longines PrimaLuna L8.109.5.78.6?

Alligator leather in cognac or light brown tones represents the most authoritative choice, allowing the natural texture of the reptile skin to dialogue with the case's brushed finishing. For those seeking a noble patina over time, dark shell cordovan is an excellent alternative. Vegetable-tanned calf offers daily practicality with a perpetually fresh appearance, while a cotton NATO strap provides casual versatility without compromising elegance.

How do you change the strap on a Longines PrimaLuna L8.109.5.78.6?

Changing the strap requires a spring bar tool, an instrument with two metal prongs that facilitate manoeuvrability. Position one prong under the spring bar from inside the lug and gently lift to disengage it, then remove the pin and old strap. Repeat on the opposite lug. Installation of the new 6mm strap follows the reverse procedure, ensuring the spring bar is fully seated before releasing pressure.

Is an aftermarket strap compatible with the Longines PrimaLuna L8.109.5.78.6?

Yes, provided the lug width is precisely 6mm. High-quality aftermarket straps, such as artisanal designs available on milanostraps.it, guarantee full compatibility with the standard spring bar system employed by Longines. Always verify that the strap is custom-made to suit your individual wrist diameter.

How long does a leather strap last on a Longines PrimaLuna L8.109.5.78.6?

Longevity depends on material and usage patterns. Alligator with vegetable tanning offers 3-5 years' durability under moderate daily wear. Shell cordovan, being a denser and more oily leather, resists beyond 5-7 years whilst developing a noble patina. Vegetable-tanned calf maintains a fresh appearance for 2-3 years of daily use. Factors such as solar exposure, humidity and routine maintenance significantly influence durability.

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