Longines · PrimaLuna
Strap for PrimaLuna Automatic 26.5 Two Tone Pink Diamond MOP
Takes 6 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The PrimaLuna L8.111.5.89.6 (aka: L81115896), seen from the bench
Frequently asked questions
What is the exact lug width of the Longines PrimaLuna L8.111.5.89.6?
The lug width of the Longines PrimaLuna L8.111.5.89.6 is precisely 6mm. This ultra-narrow width is specific to the compact 26.50mm case design and represents an intentional choice by Longines to maintain the jewel-like proportions of the model. Straps of different widths (7mm, 8mm) fail to preserve the original aesthetic balance and visually distort the watch.
What strap material is recommended for the PrimaLuna L8.111.5.89.6?
Alligator represents the supreme aesthetic choice for the Longines PrimaLuna L8.111.5.89.6: its natural grain and chromatic depth create a noble contrast with the stainless steel case. Congruent alternatives include shell cordovan for durability and patina development over time, and vegetable-tanned calf for constructive sustainability and controlled aesthetic ageing. All these materials maintain the visual lightness indispensable to a 26.50mm watch.
How do I change the strap on the Longines PrimaLuna L8.111.5.89.6?
Strap replacement requires a spring bar remover tool. Insert the tool into the lateral hole of the lug, press gently to release the internal spring, extract the old strap, and insert the new one, verifying that the spring clicks into position. Given the 6mm width and delicate proportions, it is advisable to consult a professional at Casati Milano to avoid damage to the lugs.
Can I use an aftermarket 7mm or 8mm strap on the PrimaLuna L8.111.5.89.6?
Technically, a 7mm or 8mm strap fits physically into the lug slots, but it irreversibly alters the aesthetic balance that Longines constructed intentionally. The 26.50mm case requires a proportionate strap cross-section: a width exceeding 6mm visually overburdens the wrist and contradicts the jewel-like philosophy of the model. It is recommended to seek straps sized exactly at 6mm.
How long does a leather strap last on the Longines PrimaLuna L8.111.5.89.6?
Longevity depends on material and usage. An alligator or vegetable-tanned shell cordovan typically lasts 3–5 years in daily wear, developing a patina that becomes increasingly beautiful. Dyed calf has a slightly shorter lifespan (2–4 years) due to leather fragility. Casati Milano offers an 18-month guarantee on bespoke straps and permits scheduled replacements and updates to maintain your watch in optimal condition.
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