Strap for PrimaLuna Automatic 30 Diamond MOP

The Longines PrimaLuna L8.113.0.87.6 features a lug width of 8mm, the precise distance between the two attachment points on the case. An 8mm strap ensures perfect fit without lateral play, maintaining the elegant proportions of this timepiece. To verify the measurement, use a digital calliper positioned perpendicularly between the case lugs.

The ideal strap for the PrimaLuna L8.113.0.87.6 is Madagascan or Nicaraguan alligator, offering natural texture, exceptional lightness, and patina that improves with age. Alternatively, vegetable-tanned calf leather with matte finish enhances the case's discretion. For a sportier-elegant option, Japanese shell cordovan develops rich mahogany hues over time. Avoid rubber straps and metal bracelets, which contradict this model's refined feminine character.

To change the strap on your L8.113.0.87.6, use a spring bar tool to gently compress the retaining springs at the lugs and slide the old strap outward. Position the new 8mm strap into one lug, insert the pin into the spring, then complete insertion into the second lug. The procedure requires care to avoid scratching the case. For safety, entrust the operation to a watchmaker or specialist service such as Casati Milano atelier.

Yes, any aftermarket strap with 8mm lug width is compatible with your L8.113.0.87.6, provided it meets artisanal quality standards. Milano Straps' aftermarket straps, crafted from noble leather (alligator, calf, shell cordovan) with hand-sewn stitching, guarantee perfect fit, certified durability, and customisation options in measurements, initials, and thread colour. The 18-month warranty from Casati Milano provides additional protection.

An artisanal-quality leather strap, such as those crafted by Casati Milano for the L8.113.0.87.6's 8mm lugs, typically lasts 3-5 years with daily wear, extendable to 7-10 years with rotation among multiple straps and careful maintenance. Alligator ages better than calf, developing patina that enhances its value. Shell cordovan can exceed 10 years thanks to leather density. Longevity depends on usage (lug stress), moisture exposure (avoid baths and showers), and storage (keep in a dry environment). Casati Milano's 18-month warranty covers manufacturing defects.