Strap for La Grande Classique 34 Automatic Yellow

The Longines La Grande Classique L4.708.2.12.7 features a lug width of exactly 18mm. This dimension is specific to this model and rarer than contemporary 20mm or 22mm standard sizes. To verify your watch's lug width, measure the distance between the two internal attachment points of the case using a digital calliper.

For this elegant timepiece we recommend noble materials such as alligator in black or dark brown, which emphasises the case's sobriety. Vegetable-tanned calf leather provides authenticity and develops natural patina over time. For those seeking formal density, shell cordovan in dark tones is ideal. For informal contexts, a grey talpa or muted blue NATO canvas respects the model's delicate proportions.

The strap is replaced using a spring bar tool to remove the two spring bars from the sides of the case. Position the tool along the metal shaft, apply gentle pressure, and slide the strap downward. Insert the new strap by pushing the bars into their seats: the movement should be smooth and verified on both sides.

Yes, numerous aftermarket straps are available for the 18mm lug width. Online retailers offer extensive selections in leather, canvas, and rubber, ready for shipment and customisable in length and stitching thread. The Casati Milano atelier also creates bespoke straps tailored to your specifications with personal material consultation.

A leather strap's lifespan depends on daily usage, climate conditions, and tanning method. With vegetable-tanned leather, useful life typically extends 3 to 5 years before the wrist-contact zone shows structural wear. Alligator and shell cordovan offer greater resilience. Casati Milano's warranty covers 18 months with ongoing maintenance support.