Strap for PrimaLuna Automatic 30 Stainless Steel / Silver - Roman / Bracelet

The lug width of the Longines PrimaLuna L8.113.4.71.6 is 8mm. This specific measurement reflects the scaled proportions of the 30mm case: a wider lug would have disrupted the model's aesthetic balance. To verify strap compatibility, measure the internal distance between the lug attachment points using a digital calliper.

The optimal strap depends on context and personal preference. For maximum elegance, we recommend alligator or vegetable-tanned calf leather, both of which develop natural patina over time. For versatile daily wear, fine-textured rubber offers comfort and reliability. Casati Milano customises every choice to your specifications, ensuring perfect fit and an 18-month warranty.

The strap is removed by extracting the spring bar on both sides of the case. Use a dedicated spring bar tool or fine-tipped tweezers to press the small button on the bar and withdraw it gently. Insert your new 8mm strap and repeat symmetrically on the opposite lug. If you prefer professional assistance, Casati Milano offers strap-changing services by appointment at the atelier.

All straps with an 8mm lug width are compatible. Milanostraps offers a dedicated 8mm collection in various materials: alligator, calf leather, shell cordovan, aniline leather, and rubber. Each strap is tested for precise fitment to the straight-bar lugs on your Longines.

A quality artisanal leather strap lasts 5–7 years with daily wear, provided proper maintenance: avoid prolonged moisture and apply leather conditioner every 12–18 months. Shell cordovan, being more resilient, exceeds 10 years of lifespan. Casati Milano straps come with an 18-month warranty against manufacturing and material defects.