Strap for Master Collection Date 29 Two Tone

The lug width of the Longines Master Collection L2.257.5.57.7 is 15mm. This is the distance between the two case lugs where the strap attaches. It is a non-standard measurement that requires careful attention when selecting a compatible strap.

The best strap depends on intended use and personal preference. For formal contexts, we recommend alligator in black, dark brown or burgundy with vegetable tanning. For daily wear, vegetable-tanned calf or shell cordovan offer natural patina and durability. For summer, a canvas or linen NATO guarantees practicality whilst maintaining elegance.

Use a spring bar removal tool to extract the pins attaching the strap to the case. Insert the flat end of the tool into the hole beneath the spring bar, apply gentle pressure to compress the spring, then extract the pin. Repeat for the opposite lug and replace with your new 15mm strap.

Any strap manufactured with a 15mm lug width is compatible with the L2.257.5.57.7. Milano Straps offers a dedicated collection of 15mm straps in various materials (alligator, calf, NATO, rubber) with personalisation options including custom length, monogramming and stitching thread choice.

The lifespan of a leather strap depends on material quality and usage patterns. A high-quality alligator or vegetable-tanned calf strap, well maintained, lasts 3-5 years with daily wear. Factors including humidity, sun exposure and frequency of wear influence longevity. A superior-quality strap crafted by experienced artisans guarantees extended durability and patina that improves over time.