Strap for La Grande Classique Quartz 37 White Gold Diamond

The lug width is 16 millimetres. This dimension represents the internal space between the two lugs of the case and determines compatibility with aftermarket straps. To verify it correctly, measure from the inner wall of one lug to the other: the result must be exactly 16 mm. Do not confuse this measurement with the thickness of the original strap.

For a dress watch of this elegance, the ideal choice is Italian or French calf leather with vegetable tanning, which develops natural patina over time. Alligator represents the premium alternative for those desiring graded texture and superior water-repellent resistance. Shell cordovan, although more structured, can appear visually heavy on 16 mm lugs. For summer, goat leather or saffiano strap offers versatility without compromising the minimalist elegance of the model.

The procedure requires two tools: a spring bar tool and a steady, gentle hand. The Longines L4.766.7.72.4 uses standard spring-loaded lugs: position the tool in the lateral holes of the lugs, press gently to release the internal spring, and slide the strap out of the case. Insert the new strap by aligning the holes with the lugs, then press the spring again until you hear a click. If unsure, Casati Milano offers rapid strap change with personalised consultation.

Absolutely. The Longines La Grande Classique L4.766.7.72.4 is perfectly compatible with standard 16 mm aftermarket straps. On milanostraps.it you will find a wide selection of artisanal leathers (calf, alligator, shell cordovan, rubber) customisable in length, initials and stitching thread. The important thing is to verify that the strap has the correct lug width: 16 millimetres. Casati Milano custom straps also guarantee a perfect fit for specific anatomy and wrist.

Longevity depends on use and leather type. A quality artisanal vegetable-tanned calf strap lasts an average of 3–5 years with daily wear, developing characteristic patina. Alligator and shell cordovan, being denser, reach 5–7 years. Critical factors are: moisture (keep the watch dry after washing), direct sunlight exposure (leather fears excessive UV), and maintenance regularity (treat leather with specific balm every 6–12 months). Casati Milano straps include an 18-month warranty against manufacturing defects.