Longines · PrimaLuna
Strap for PrimaLuna Automatic 30 Pink Gold Diamond Arabic
Takes 8 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The PrimaLuna L8.113.9.16.6 (aka: L81139166), seen from the bench
Frequently asked questions
What is the lug width of the Longines PrimaLuna L8.113.9.16.6?
The lug width of the Longines PrimaLuna L8.113.9.16.6 is 8 millimetres. This measurement represents the distance between the two lateral pins of the case. Measuring correctly is essential: place a digital calliper perpendicular to the dial, between the two attachment points, to obtain the precise reading. Eight millimetres are exceptionally rare in industrial standards, requiring specialist knowledge when sourcing compatible straps.
What is the best strap for the Longines PrimaLuna L8.113.9.16.6?
Alligator leather with vegetable tanning in medium brown represents the most authentic choice: the refined grain creates a surface that reflects light in a subtle, aristocratic manner, complementing the rose gold case perfectly. Shell cordovan is a noble alternative for those preferring a strap with pronounced horizontal grain. Calf leather offers versatility, whilst a textile NATO enables more contemporary reinterpretations. Recommended thickness: 1.3–1.5mm.
How do I change the strap on the Longines PrimaLuna L8.113.9.16.6?
To change the strap, you must remove the lateral pins securing the strap to the case. Use a spring bar tool (a specialised lever instrument) to compress the internal spring of the pin, carefully extracting it from the lug. Repeat on the other side. Insert the new strap, aligning its width with the case holes, then reinsert the pins. Given that this is a rose gold timepiece of refined proportions, we recommend entrusting the operation to a professional watchmaker to prevent scratching.
Can I use an aftermarket strap compatible with the 8mm PrimaLuna?
Yes, the Longines PrimaLuna L8.113.9.16.6 is fully compatible with high-quality aftermarket straps, provided the lug width is precisely 8mm. Milano Straps offers a curated selection of straps in alligator, cordovan, calf and textile, all customisable in dimensions, initials and stitching thread. A well-executed artisanal strap can significantly elevate both the aesthetics and comfort of your timepiece.
How long does a leather strap last on the Longines PrimaLuna L8.113.9.16.6?
A leather strap's lifespan depends on frequency of use, climatic conditions and construction quality. Alligator or shell cordovan with vegetable tanning typically lasts 4–7 years under daily wear, extendable through periodic maintenance (gentle cleaning and leather conditioning). Structured calf leather has a slightly shorter lifespan (3–5 years). Milano Straps straps include an 18-month warranty and are constructed using artisanal techniques that guarantee longevity superior to industrial products.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
