Strap for La Grande Classique Automatic 36 Two Tone / White Stick

The lug width of the Longines La Grande Classique L4.908.2.12.7 is precisely 20mm. This is a specific measurement for this model, not commonly found in standard retail catalogues. To verify it accurately, position a digital calliper in the inner groove of the case where the lug crosses the bezel: the distance between the two contact points must correspond to 20mm. This measurement requires specialized artisanal straps to ensure correct aesthetic proportions.

The best material depends on usage context and personal preference. For maximum formality, we recommend alligator leather with vegetable tanning and fine grain: the module of the alligator scales creates a visual dialogue with the dial indices. For daily robustness, English calf leather aged naturally develops a fascinating patina over time. For versatility, a grey or navy NATO offers superior grip. Every choice must allow free passage through the lug without forcing.

To change the strap, you must access the lugs. Position the watch on a stable surface and, using a spring bar tool, apply gentle outward pressure to release the elastic pin that supports the lug. Once released, remove the old strap. Verify that the new strap is compatible with 20mm width and appropriate length for your wrist (considering passage through the lug and excess for fastening). If you lack experience, entrust the task to a specialist: Casati Milano offers replacement service with personalised consultation.

Yes, there are compatible artisanal aftermarket straps, but they require conscious selection. Many commercial 20mm straps are made with inferior materials or lengths not calibrated for the average wrist. We recommend contacting specialist producers such as those available on milanostraps.it, where straps are customisable in sizes, certified materials (alligator, vegetable-tanned calf, shell cordovan, NATO) and stitching thread options. Warranty and personalisation via WhatsApp ensure compatibility and durability.

Lifespan varies significantly based on material and usage. An alligator with vegetable tanning, if maintained regularly (cleaned with soft cloth, protected from direct sunlight and constant humidity), can last 5-8 years of daily wear, developing a prized patina. English calf leather naturally aged lasts 3-5 years with moderate use. Shell cordovan, due to leather density, reaches 7-10 years. NATO, being synthetic fabric, lasts 4-6 years if not exposed to tearing. Casati Milano offers 18-month warranty on all straps, covering stitching and material defects.