Strap for La Grande Classique Quartz 29 Stainless Steel / White - Eastern Arabic / Bracelet

The lug width of the Longines La Grande Classique L4.512.4.13.6 is 16 millimetres. This measurement is standard for the ladies' model and is proportioned to the compact 29mm case. Always measure the internal distance between the lugs before purchasing an aftermarket strap to ensure absolute compatibility.

For the L4.512.4.13.6, we recommend straps in natural alligator or vegetable-tanned calf leather, which enhance the minimalist design of the timepiece. Black or dark brown alligator creates a timeless aesthetic, whilst calf leather develops a rich patina with time. For those seeking versatility, a quality canvas NATO offers practicality and quick changes. The choice depends on your lifestyle and personal aesthetic.

To change the strap, use a dedicated spring bar removal tool. Gently position the tool under the lug pin, apply light pressure to compress the internal spring mechanism, and remove the worn strap. Insert the new strap by aligning the holes with the lugs, and press the pin until you feel the lock click into place. Alternatively, the Casati Milano atelier offers strap change and personalisation services by appointment.

Yes, provided the lug width is exactly 16mm. Milano Straps offers a specialised collection of artisanal 16mm straps compatible with your L4.512.4.13.6, crafted from premium materials such as alligator, calf leather and FKM rubber. Each strap is tested for mechanical compatibility and construction quality, with options for customisation in sizing, initials and stitching thread.

The lifespan of a leather strap depends on usage and maintenance. A quality artisanal alligator or vegetable-tanned calf strap typically lasts 3-5 years with daily wear. Vegetable tanning, unlike synthetic methods, develops natural patina over time rather than degrading. Milano Straps guarantees 18 months on bespoke straps and recommends rotating multiple straps to distribute wear and extend the overall lifespan of the lug system.