Strap for Master Collection 38.5 Day Date Stainless Steel / Silver-Diamond / Bracelet

The Longines Master Collection L2.755.4.77.6 features a lug width of exactly 20mm, measured from the inner distance between the two lugs of the case. This precise measurement requires compatible straps to ensure proper fit without slack or excessive tension.

Alligator leather in brown or black tones is the most aesthetically coherent choice for the Master Collection's classical and formal identity. Alternatively, shell cordovan in deep burgundy or vegetable-tanned calf leather offer premium materials that develop patina over time. For sports use, NATO canvas provides practicality.

Strap replacement requires a spring bar tool to release the bars (asticelle) that secure the previous strap. The new 20mm strap is positioned on the case lugs and the spring bars are reinserted into the anchor holes. Perform this operation carefully to avoid scratching the case.

Yes, provided they strictly adhere to the 20mm lug width. Artisanal straps of superior quality ensure aesthetic coherence with the Master Collection's formal vision and superior durability compared to industrial products.

A vegetable-tanned or alligator leather strap of artisanal quality typically lasts 3-5 years with daily use, provided regular maintenance (avoiding prolonged moisture and dust). Natural leather undergoes aging, developing patina that enhances aesthetic value. A well-constructed strap is easily renewed by replacing only the leather component.