Strap for La Grande Classique Automatic 25 Stainless Steel / Yellow Gold PVD / Champagne

The lug width of the Longines La Grande Classique L4.398.3.32.7 is 13mm. This dimension, which is narrower than the standard 16mm, is characteristic of this compact dress watch. To measure it accurately, use a digital calliper on the steel base between the two lugs, not on the top of the case. Precision in measurement is essential to ensure the strap fits perfectly without play or excessive tension.

For the Longines L4.398.3.32.7, we recommend alligator leather with vegetable tanning or calf skin with a conscious patina. Alligator, especially in tobacco brown tones, creates an elegant contrast with the minimalist steel case. Alternatively, grey talpa calf or robust cotton NATO straps offer versatility and comfort while maintaining the aesthetic minimalism of the model.

To change the strap on the Longines L4.398.3.32.7, it is necessary to remove the spring bars that connect the strap to the case. Use a dedicated spring bar tool to gently compress the pin and extract it from the lugs. Next, insert the spring bars into the new strap of the same width (13mm) and ensure they are completely seated in their housings. For impeccable execution, consult a certified professional.

Yes, certified quality aftermarket straps are available for the 13mm lug width. Milano Straps offers a complete selection of 13mm straps compatible with the Longines L4.398.3.32.7, available in various materials (alligator, calf, shell cordovan, NATO) and customisable in length, initials and stitching thread. Casati Milano atelier also creates bespoke straps with personalised consultation and an 18-month warranty.

The lifespan of a leather strap depends on the quality of the tanning, use and maintenance. An artisanal alligator or calf strap from Milano Straps, with proper care, guarantees 3-5 years of daily wear. Exposure to sweat, water and sunlight accelerates wear. A shell cordovan strap, thanks to its natural density, can last 5-7 years. Straps made by Casati Milano, with an 18-month warranty, ensure premium materials and durable construction over time.