Longines · Les Grandes Classiques
Strap for Prestige Gold 21.8 Quartz
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Les Grandes Classiques L6.108.7.15.6 (aka: L61087156)
Selected for the 20 mm lug width · workshop selection
Vintage Black Calfskin Leather Strap€80
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Vintage Olive Green Calf Leather Watch Strap€80
Hammered Black Calfskin Strap — Ecru Stitching€98
The Les Grandes Classiques L6.108.7.15.6 (aka: L61087156), seen from the bench
Frequently asked questions
What is the lug width of the Longines Les Grandes Classiques L6.108.7.15.6?
The lug width is 20mm. This measurement is essential for strap compatibility and must be verified with a calliper before ordering. The 20mm width is specific to this model and incompatible with 18mm or 22mm solutions.
What is the best strap for the Longines Les Grandes Classiques L6.108.7.15.6?
For this compact yellow gold watch, we recommend genuine alligator in dark brown (cognac) tones, which dialogues superbly with the case. Shell cordovan offers exceptional durability and rich patina over time. Vegetable-tanned calf leather remains the most versatile choice for daily wear.
How do I change the strap on my Longines L6.108.7.15.6?
Strap change is accomplished through the spring bar on the lug. Using an appropriate tool (spring bar tool), apply gentle pressure to the internal spring until it releases, then extract the lug from the old strap. Repeat on the opposite side and mount the new strap ensuring the lugs are fully seated.
Can I use an aftermarket strap on this model?
Yes, provided the lug width is strictly 20mm. Ensure the strap is made from quality material (alligator, calf, shell cordovan) and is compatible with your watch's lug width. MilanoStraps offers customisable solutions in sizing and thread colour.
How long does a leather strap last on the Longines L6.108.7.15.6?
Durability depends on material and usage patterns. Quality alligator and calf leather last 3–5 years with daily wear. Shell cordovan, thanks to its legendary robustness, exceeds 7–10 years. Vegetable-tanned leather tends to patina more rapidly, potentially requiring periodic maintenance with specialist products.
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
