Strap for La Grande Classique Quartz 24 Yellow LEather Roman

The lug width of the Longines La Grande Classique L4.209.2.31.2 is 13mm. This is a specific and non-standard measurement, requiring dedicated straps. To verify compatibility, measure the internal distance between the two lug attachments using a millimetre ruler positioned at the centre of the lug.

The ideal strap depends on usage and aesthetic preferences. Vegetable-tanned alligator is the noblest choice, offering elegance and a patina that evolves with time. Box calf with open grain provides versatility and characteristic ageing. Shell cordovan represents a compromise between durability and refinement. For a sporting option, a structured rubber strap or quality NATO fabric remains coherent with the case design. All these materials are available in 13mm lug width through Milano Straps.

Strap replacement requires a spring bar tool. Insert the flat end of the tool under the suspension spring, press gently inward to release the metal pin, and repeat on the other side. Next, thread the new strap by inserting the lugs into the case holes and secure the suspension pins. If you prefer professional intervention without risk, the Casati Milano atelier offers on-site replacement with warranty.

Yes, a quality aftermarket strap is completely compatible with the Longines L4.209.2.31.2, provided the lug width is exactly 13mm. Milano Straps offers a curated selection of handcrafted straps in various finishes and materials (alligator, calf, shell cordovan, rubber) specifically designed for this measurement. A premium aftermarket strap does not affect water resistance or watch functionality, and allows you to personalise the style according to occasion.

A premium leather strap (vegetable-tanned alligator, box calf, shell cordovan) typically lasts 4-6 years with moderate daily wear. Longevity depends on humidity exposure, perspiration, cleaning frequency, and tanning type. Vegetable-tanned leather tends to age more naturally, whilst shell cordovan resists wear exceptionally well. The Casati Milano atelier guarantees 18 months coverage on its handcrafted straps, and offers maintenance and restoration services over time.