Longines · La Grande Classique
Strap for La Grande Classique Quartz 24 Stainless Steel / Silver - Roman / Bracelet
Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The La Grande Classique L4.209.4.71.6 (aka: L42094716), seen from the bench
Frequently asked questions
What is the lug width of the Longines La Grande Classique L4.209.4.71.6?
The lug width is 13mm. This dimension is specific to the model and is essential for purchasing a compatible strap. To verify compatibility, measure with a digital calliper the distance between the two lugs at the lower attachment point. A correctly sized strap will fit without forcing.
Which strap is best suited for the Longines La Grande Classique?
Alligator leather remains the most elegant and durable choice, particularly in vegetable tanning. Smooth calfskin offers a more delicate tactile perception and develops a natural patina over time. For sportier styles, FKM rubber or nato cotton straps ensure daily comfort without compromising the aesthetic minimalism of the model.
How do I change the strap on my Longines La Grande Classique L4.209.4.71.6?
Remove the strap using a spring bar tool. Position the tool in the small groove of the spring, press inward and lift simultaneously. The spring will retract, allowing the lug to be extracted. Repeat on the other side. When installing the new strap, align the keepers with the lugs and press downward until the spring clicks into place.
Can I use an aftermarket strap compatible with the La Grande Classique?
Yes, provided the lug width is exactly 13mm. Milano Straps offers customizable straps in alligator leather, calfskin and cotton. Always verify that the strap keepers are sized for 13mm width. Incorrect keepers cause lateral play or excessive resistance during removal.
How long does a leather strap last on the Longines La Grande Classique?
An alligator strap with vegetable tanning lasts an average of 5–7 years with daily use, thanks to the natural fibre resistance. Calfskin, less resistant to wear, has a useful life of 3–5 years. Longevity depends on frequency of use, water exposure and regular maintenance. Casati Milano provides an 18-month warranty on all handcrafted straps.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
