Strap for Master Collection Date 36 Two Tone Gold Stick

The lug width of the Longines Master Collection L2.518.5.32.7 is 19mm. This dimension requires straps specifically manufactured for this width, differing from standard mass-market sizes (18mm or 20mm). To verify the correct lug width, use a digital calliper to measure the internal distance between the two spring bar holes that support the strap on the case.

For the Master Collection L2.518.5.32.7 in yellow gold and steel, we recommend alligator in medium brown (which creates harmony with the yellow gold), English calf in cognac colour (which develops a deep patina over time), or shell cordovan in colour n.8 for those desiring a strap that ages consciously. The choice depends on intended use: formal for alligator, contemporary for calf, elegant-eccentric for shell cordovan.

The change requires a spring bar tool (lever for spring bars). Position the tool on the spring bar on the upper side of the case, push downward to retract it, then gently remove the strap. Repeat on the lower side. To install the new 19mm strap, align the two holes on the new leather with the spring bars and press until locked. If you are not experienced, consulting a specialist atelier (such as Casati Milano) ensures impeccable installation.

Yes, provided the strap is manufactured specifically for the 19mm lug width. Quality aftermarket straps (alligator, calf, shell cordovan) are completely compatible with the Master Collection. The important thing is to verify the exact lug width and the strap's construction quality: consistent thickness (1.2–1.5mm for calf, 1.0–1.3mm for alligator), regular stitching, finished edges.

Durability depends on material, use and care. A quality alligator strap lasts 4–6 years with daily wear; English calf offers 5–8 years if subjected to regular maintenance (occasional cleaning, minimal conditioning); shell cordovan, thanks to its intrinsic density, can last 8–12 years or longer, improving aesthetically with age. The stitching is the critical point: if made with quality nylon thread and appropriate needles, it resists longer. To extend strap life, avoid direct exposure to salt water and dry immediately after accidental contact.