Strap for La Grande Classique 34 Automatic Yellow

The Longines La Grande Classique L4.708.2.12.8 features a lug width of 18 mm. This specification is proportioned to the 34 mm case and accommodates a broad range of strap options, from classic leather to sport materials. To verify the lug width, position a metal ruler between the two lugs, measuring from the centre of the first hole to the centre of the opposite hole: the result will consistently be 18 mm.

For the La Grande Classique L4.708.2.12.8, straps crafted in alligator or shell cordovan with vegetable tanning are recommended, as they develop a refined patina over time and harmonise with the minimalist aesthetic of the 34 mm case. Alternatively, vegetable-tanned calf leather offers a balance between initial suppleness and chromatic depth, whilst NATO straps remain a versatile choice provided they are constructed from premium silk or cotton.

To change the strap, position the watch horizontally and locate the lever that secures the lug. Using a dedicated tool or a small lever, gently press the release mechanism to slide the lug out of its aperture. Repeat on the opposite side. To install the new strap, insert one end into the lug first, then press the opposite end firmly until you hear the lug lock engage. The operation requires approximately 30 seconds per side and requires no specialist tools.

Yes, any strap with an 18 mm lug width is compatible with the Longines La Grande Classique L4.708.2.12.8. High-quality artisanal aftermarket straps frequently offer superior construction and aesthetic customisation unavailable in OEM straps. We recommend selecting straps with vegetable tanning, deployante clasps, or stainless steel buckles to maximise durability and visual harmony with the case.

A quality leather strap, constructed with vegetable tanning and professional stitching, maintains its aesthetic and functional properties for 3–5 years of daily wear. Longevity depends upon environmental conditions (humidity, solar exposure) and maintenance practices. Alligator or shell cordovan straps age more gradually and acquire patina progressively, potentially extending the service life to 7–10 years. Casati Milano provides an 18-month warranty on all custom-crafted straps.