Longines
Master Collection L2.409.4.87.4— lug 18mm
Longines Master Collection L2.409.4.87.4: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L2.409.4.87.4The essential strap measurement.
Browse 18mm straps →L2.409.4.87.4
Longines caliber L899.2 Hours, Minutes, Small Seconds | Date | Moonphase
The Heritage
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Selected for the 18mm lug width of the Master Collection
FAQ
What is the lug width of the Longines Master Collection L2.409.4.87.4?
The lug width of the Longines Master Collection L2.409.4.87.4 is precisely 18mm. This measurement is taken between the two internal edges of the lugs located on the case (between 12 and 6 o'clock positions). To verify compatibility, use a calliper or the edge of a ruler: the strap must have a 18mm spring bar channel to fit perfectly without play or force.
Which strap material is most suitable for the Longines Master Collection L2.409.4.87.4?
For the L2.409.4.87.4, materials are recommended that respect the formal elegance of the case: soft alligator (Nile or Australian) for consistent grain and natural patina, shell cordovan for those seeking chromatic depth and evolved lustre over time, calf leather with vegetable tanning for balance between finesse and visible ageing. NATO straps offer an informal summer option. Avoid excessively stiff or thick leathers: they would disrupt the proportional harmony between the 34mm case and strap.
How do I change the strap on a Longines Master Collection L2.409.4.87.4?
The change requires a specific tool: a spring bar tool to be gently inserted into one of the lug holes. By compressing the internal spring, the lug releases from the case. Fully remove the old strap, then insert the new one in the same hole, ensuring the lug engages completely on both sides. Repeat for the second side. A professional watchmaker completes the operation in minutes without risk of case scratching.
Can I use an aftermarket (non-Longines) strap on my L2.409.4.87.4?
Yes, any strap manufactured with an 18mm lug width is compatible. Higher-quality aftermarket straps often exceed standard-issue ones in terms of leather quality, stitching, and internal finishing. What matters is choosing manufacturers who control leather thickness and rigidity: excessively thick or stiff straps will alter the tactile and visual experience of the watch.
How long does a leather strap last on a Longines Master Collection L2.409.4.87.4?
Durability depends on frequency of use and material. Soft alligator lasts 2-4 years with intensive daily wear; shell cordovan, more resilient, can reach 4-6 years. Vegetable-tanned calf resists approximately 2-3 years. A ripstop NATO strap lasts 3-5 years. Maintenance extends lifespan: protect the leather from excessive water and perspiration, allow it to air-dry after moisture exposure, apply leather balm occasionally. A superior-quality strap, treated with care, becomes more beautiful with age.