Longines · PrimaLuna
Strap for PrimaLuna Quartz 30 Stainless Steel / Yellow Gold / Silver - Roman / Bracelet
Takes 7 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Frequently asked questions
What is the exact lug width of the Longines PrimaLuna L8.112.5.91.6?
The lug width of the Longines PrimaLuna L8.112.5.91.6 is 7 millimetres, a dimension below conventional ladies' watch standards (10-12mm). To measure accurately, position the calliper within the deepest groove of the lug attachment, parallel to the dial. This specific measurement creates harmonious proportions between the 30mm case and strap.
Which strap material pairs best with the PrimaLuna L8.112.5.91.6?
Alligator represents the most refined solution: its regular grain and natural patina over time complement the case curve without visually burdening the wrist. Vegetable-tanned calf develops a golden patina, whilst shell cordovan offers superior structural rigidity and exceptional durability. NATO fabrics and technical rubber provide daily practicality for professional environments where leather requires frequent maintenance.
How do I change the strap on the Longines PrimaLuna L8.112.5.91.6?
The procedure requires spring bar tools to depress the elastic pins laterally at the lug attachment, releasing the strap from the original mounting. Apply pressure toward the case interior, keeping your wrist stable on a soft surface to avoid scratches. Insert the new 7mm strap by aligning the lug holes with the pins and pressing until the click engages. We recommend this operation be performed by a specialised atelier if unfamiliar with the procedure.
Can I use an aftermarket strap on this watch?
Yes, provided the lug width is precisely 7 millimetres and thickness does not exceed 1.2mm (for casebands of reduced design such as the PrimaLuna). Verify that the material does not exceed in rigidity, as the reduced case diameter necessitates soft and ergonomic straps. The 7mm straps available on milanostraps.it are tested specifically for this model and guaranteed compatible.
How long does a leather strap last?
Durability depends on material and usage patterns. Alligator delivers 2-3 years of daily wear without appreciable aesthetic degradation. Vegetable-tanned calf develops an ageing patina and maintains structural functionality beyond 3 years. Shell cordovan achieves 4-5 years and beyond. All materials benefit from periodic cleaning with damp cloths and storage in dry environments. The Casati Milano atelier offers 18 months guarantee on bespoke-created straps.
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
