Longines · PrimaLuna

Strap for PrimaLuna Automatic 30 Stainless Steel / Blue / Bracelet

Takes 8 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width8 mm
Case diameter30 mm
ReferenceL8.113.4.90.6
FamilyPrimaLuna
MovementLongines caliber L592.5 hours, minutes, seconds | date | chronometer
Year2023
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 L8.113.4.90.6, seen from the bench

The PrimaLuna features the Longines L592.5 caliber with hours, minutes, seconds and date functions, certified as a chronometer. The case mounts 8mm lugs. The movement offers time indication with a date complication and certified chronometric precision.

Frequently asked questions

What is the lug width of the Longines PrimaLuna L8.113.4.90.6?

The lug width of the Longines PrimaLuna L8.113.4.90.6 is 8mm. This compact measurement is characteristic of small feminine cases and represents the internal distance between the case lugs where the strap is inserted. Always verify this dimension by measuring perpendicular to the case surface with a millimetre ruler before ordering an aftermarket strap.

Which strap is best suited for the Longines PrimaLuna L8.113.4.90.6?

For the PrimaLuna L8.113.4.90.6, we recommend alligator Hermès or Nile straps for maximum elegance, or calf leather with vegetable tanning for environmental awareness and time-developed patina. Shell cordovan is inadvisable (too rigid for 8mm lugs). A grey pearl NATO fabric offers a modern hybrid option with excellent versatility.

How do I change the strap on a Longines PrimaLuna L8.113.4.90.6?

Strap replacement on this model requires a spring bar tool to compress the internal springs within the lugs and extract the original strap. Gently insert the new strap, positioning the lugs horizontally. For 8mm lugs, avoid excessively thick lugs that would create tension on the case. If unfamiliar with this procedure, entrust the task to Casati Milano atelier to prevent case damage.

Are there compatible aftermarket straps available for the Longines PrimaLuna L8.113.4.90.6?

Yes, certified 8mm aftermarket straps compatible with the PrimaLuna L8.113.4.90.6 are available. Milano Straps offers a curated selection of leather, fabric and rubber straps ready for immediate despatch, fully customisable in dimensions, initials and stitching thread colour. For bespoke requirements, Casati Milano atelier crafts custom straps with personally selected materials and 18-month warranty.

How long does a leather strap last on a Longines PrimaLuna L8.113.4.90.6?

A quality leather strap (alligator, calf, shell cordovan) typically lasts 4-7 years with daily wear, depending on frequency of use and maintenance. Vegetable-tanned leather ages more rapidly but develops an appealing patina. Primary wear occurs at stress points (lug slots and strap joints) and the buckle. Proper storage (away from excessive humidity and heat) and periodic cleaning significantly extend lifespan.

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