Strap for Master Collection 44 Retrograde Stainless Steel / Silver-Roman / Alligator XL

The lug width of the Longines Master Collection L2.717.4.71.5 is 20 millimetres. This measurement is the critical parameter determining strap compatibility. To verify it correctly, use a digital calliper positioned on the inner edge of the left lug to the inner edge of the right lug at the widest point, where the buckle or deployant is inserted.

For the L2.717.4.71.5, several materials are recommended depending on usage and aesthetic preference. Alligator is the classic choice for formal elegance with exceptional grain fineness. Shell cordovan develops a distinctive aged patina whilst maintaining equilibrium with the steel case. Vegetable-tanned calf is versatile and ages with dignity. Rubber (FKM) is suitable for moderate sporting contexts without compromising the aesthetic balance of the 44mm case.

Changing the strap on the L2.717.4.71.5 requires a quality spring bar tool. Position the watch on a stable surface, gently press the tool lever downward to release the internal spring of the lug, extract the lug from the case, remove the previous strap and insert the new one aligning it with the holes. Verify that both lug ends are fully inserted before wearing the watch.

Yes, an aftermarket strap with a 20mm lug width is fully compatible with the L2.717.4.71.5 provided it has been manufactured to these exact specifications. MilanoStraps artisan straps are customisable in size, leather, colour and stitching whilst maintaining complete compatibility with original Longines lugs. Always verify exact dimensions before ordering.

The lifespan of a natural leather strap depends on intensity of use, climate conditions and construction quality. An alligator or shell cordovan strap well-maintained can last 3-5 years with moderate daily use, up to 7-10 years with occasional wear. Vegetable-tanned calf has similar durability but ages visibly, developing a distinctive patina. MilanoStraps are guaranteed for 18 months and crafted with exceptional quality leather, which extends longevity significantly.