Strap for PrimaLuna Quartz 30 Stainless Steel / Yellow Gold / White

The lug width of the Longines PrimaLuna L8.112.5.90.2 is 7mm. This technical parameter represents the distance between the two case attachments and determines strap compatibility. It is a specific measurement that requires custom-made or specially fabricated straps to ensure a perfect fit without lateral play.

For the PrimaLuna L8.112.5.90.2, alligator straps are recommended for classic elegance, vegetable-tanned calf leather for daily versatility, or structured rubber for modern functionality. The choice depends on usage context: alligator is ideal for formal occasions, calf paired with a stainless steel deployante buckle for aesthetic-functional balance, rubber for those seeking practicality without visual compromise.

Changing a strap on 7mm lugs requires precision. Use a spring bar removal tool positioned perpendicularly to the attachment pin. Apply gentle downward pressure, disconnect the pin from the case hole, and repeat on the other side. When inserting the new strap, ensure the pins align perfectly with the seats, verify there is no lateral play, and confirm the visual transition is fluid.

Yes, aftermarket straps with 7mm attachments are available from specialist and artisanal retailers. However, to ensure construction and aesthetic quality consistent with the watch, it is advisable to consult bespoke manufacturers who can provide material certifications (genuine alligator, vegetable-tanned calf) and finishes (proportionate stainless steel deployante buckles). Milano Straps offers a selection of 7mm straps ready-made and bespoke through the Casati Milano atelier.

The lifespan of a leather strap depends on material and usage. Quality alligator, with regular maintenance, offers 3–5 years of daily wear. Vegetable-tanned calf has similar longevity, with patina improving over time. Structured rubber is generally more durable, 5–7 years. Factors such as sun exposure, perspiration, humidity, and frequency of wear influence longevity. The Casati Milano atelier guarantees 18 months on its products, covering manufacturing defects and non-compliant materials.