Strap for La Grande Classique 29 Stainless Steel - Diamond / MOP

The Longines La Grande Classique L4.523.0.87.6 features a lug width of 16mm. This specification is characteristic of the collection and is determined by the compact proportions of the 29mm stainless steel case. The lug width represents the distance between the two lugs of the case and is essential for ensuring precise compatibility with any aftermarket strap.

The choice depends on usage and aesthetic preference. For formal occasions, a black alligator strap with fine grain enhances the minimalist elegance of the collection. High-quality calf leather in cognac brown adds character and develops a visible patina over time. For those seeking versatility, a cotton NATO strap or an artisanal vulcanised rubber strap ensures daily comfort without compromising the watch's refined simplicity.

Strap replacement requires the use of a spring bar tool to extract the anchor bars from the case. The bars are accessible from the lug extremities, and once released, the strap can be removed. When inserting the new strap, ensure that the bars are correctly positioned in their respective slots. Proceed with caution to avoid scratching the stainless steel case. A specialised atelier, such as Casati Milano, offers professional installation services with warranty.

Yes, Milano Straps offers a comprehensive collection of artisanal straps compatible with the 16mm lug width. All models are available in fine leather (alligator, calf, shell cordovan) and other materials, customisable in length, initials, and stitching thread colour. Casati Milano atelier, by appointment, provides personal leather selection and bespoke strap creation with an 18-month warranty.

Durability depends on material, tanning process, and usage. A high-quality alligator strap with vegetable tanning typically lasts 3-5 years with moderate daily wear. Vegetable-tanned calf leather offers similar longevity, with the advantage of a visible patina that documents time. Longevity increases significantly if the strap is worn in rotation with other models and subjected to regular maintenance. Casati Milano provides an 18-month warranty on bespoke straps.