Longines · PrimaLuna
Strap for PrimaLuna Quartz 30 Stainless Steel / Pink Gold / Diamond / MOP / Bracelet
Takes 7 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The PrimaLuna L8.112.5.89.6 (aka: L81125896), seen from the bench
Frequently asked questions
What is the lug width of the Longines PrimaLuna L8.112.5.89.6?
The lug width of the Longines PrimaLuna L8.112.5.89.6 is 7 millimetres. This dimension is measured as the internal space between the case attachment pins. To verify it accurately, insert a digital calliper between the two lugs and read the distance. This compact size is characteristic of Longines women's models and excludes standard straps, requiring specialised selection from artisanal makers.
Which strap is recommended for the Longines PrimaLuna L8.112.5.89.6?
For the PrimaLuna L8.112.5.89.6 we recommend straps in Nile alligator with vegetable tanning (black, dark brown), grained calf (burgundy, navy blue) or shell cordovan for those desiring natural patina evolution over time. Alligator enhances the model's femininity with regular texture and symmetrical scutes, whilst calf leather offers versatility between formal and everyday casual. The 7mm lug width requires custom realisation to maintain correct visual proportions.
How do I change the strap on the Longines PrimaLuna L8.112.5.89.6?
To change the strap: (1) Position the watch on a soft surface with the caseback facing upwards; (2) Using a spring bar tool, apply gentle downward pressure on the internal elastic pin of the lug, lifting upward; (3) The pin will exit its seat; (4) Remove the old strap and insert the new one, aligning the pins with their respective seats; (5) Apply light pressure until the locking clicks into place. We recommend performing the operation in two stages: remove one side first, then the second.
Can I use an aftermarket-compatible strap with the Longines PrimaLuna L8.112.5.89.6?
Yes, provided the aftermarket strap has a certified 7-millimetre lug width and spring pins compatible with Longines standard (typically 1.8mm diameter). We recommend artisanal straps custom-realised for this specific size, as generic commercial kits do not guarantee correct visual proportion. Milano Straps offers a curated selection of 7mm straps customisable in fine leather with 18-month guarantee.
What is the lifespan of a leather strap on the Longines PrimaLuna L8.112.5.89.6?
A quality leather strap (alligator, calf or shell cordovan) used daily on a women's watch such as the PrimaLuna has an average lifespan of 3-5 years. Longevity depends on usage type (sporty vs. formal), climatic conditions (humidity, direct sunlight) and maintenance. A vegetable-tanned strap requires occasional conditioning with specific leather balms. Shell cordovan, given its density, can last beyond 7-10 years if properly cared for. Milano Straps' artisanal straps carry 18-month guarantee against manufacturing defects.
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
