Strap for PrimaLuna Quartz 30 Stainless Steel / Pink Gold / Diamond / Silver - Roman

The lug width of the Longines PrimaLuna L8.112.5.79.2 is 7 millimetres. This measurement is specific to the feminine PrimaLuna collection models and is critical when purchasing compatible straps. To verify, remove the strap and measure the spring bar with a digital calliper in the middle section, avoiding the tapered edges.

For the PrimaLuna L8.112.5.79.2, we recommend dark brown alligator for formal elegance, vegetable-tanned cognac calfskin for noble ageing, or shell cordovan for superior longevity. Grey-dark rubber is ideal for versatile daily wear. We advise against saturated black straps, which create visual discord with the bi-colour rose gold–steel case.

Strap removal is performed by extracting the spring bar from the case lugs. Use a dedicated tool or small flat screwdriver to press the spring mechanism inward, releasing one end of the bar. Repeat on the opposite side and insert the new lug width, ensuring the spring bar is fully secured in both lugs.

Yes, provided the strap is calibrated to 7mm lug width. Artisanal-quality straps, such as alligator, vegetable-tanned calfskin, or shell cordovan, are fully compatible and often superior to OEM straps for aesthetic versatility and longevity. Ensure the strap is fitted with stainless-steel spring bars to prevent oxidation.

A quality leather strap (alligator, calfskin, or shell cordovan) lasts approximately 3–5 years with daily wear, provided correct maintenance. Vegetable tanning ages the material nobly, whilst chrome-tanned leathers maintain greater rigidity. Humidity exposure accelerates deterioration, as do perspiration and prolonged UV exposure. Rotating between two straps significantly extends total longevity.