Longines · Master Collection
Strap for Master Collection Date 36 Stainless Steel Diamond
Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Frequently asked questions
What is the exact lug width of the Longines Master Collection L2.518.4.77.6?
The lug width is 19mm. This measurement refers to the internal distance between the two spring bar holes on the case lugs, where the strap attaches. It is essential to measure this correctly with a digital calliper to ensure you purchase a compatible strap without lateral play.
Which strap is best suited for the Longines Master Collection L2.518.4.77.6?
For this 36mm model we recommend alligator with vegetable tanning (medium brown or black) or shell cordovan for those seeking supreme quality. Calf leather is a more economical yet versatile alternative. In casual contexts, cotton-polyester NATO offers comfort and practicality without aesthetic compromise.
How do I change the strap on the Longines Master Collection L2.518.4.77.6?
Use a spring bar tool to gently remove the elastic pins from the lugs. Position the tool in the lateral groove of the spring bar, apply light pressure to release the pin, remove the old strap and insert the new one until definitive click engagement.
Can I purchase an aftermarket strap compatible with the Longines L2.518.4.77.6?
Yes. Any 19mm strap is compatible with this model. Milano Straps offers customisable straps in premium leather, custom sizes, initials and stitching variants. Always verify that the lug width is exactly 19mm before purchase.
What is the average lifespan of a leather strap for the Longines Master Collection L2.518.4.77.6?
A high-quality alligator or calf leather strap lasts 3-5 years with daily wear, depending on tanning and environmental stress. Shell cordovan, thanks to its fibrous structure, can last 5-7 years developing natural patina. Regular maintenance and seasonal rotation (alternating straps) significantly extend longevity.
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
