Strap for Master Collection 40 Date Stainless Steel - Yellow Gold / Silver / Bracelet

The lug width of the Longines Master Collection L2.793.5.72.7 is 21 millimetres. To measure correctly, position a metal ruler perpendicular to the top of the case between the two lugs: the internal distance between the edges of the spring bar attachment represents the exact measurement reference.

For a Longines Master Collection two-tone yellow gold and stainless steel case, we recommend alligator leather in medium to dark brown tones, which creates visual balance without chromatic competition. Quality alternatives include shell cordovan for chromatic versatility and vegetable-tanned calf leather for an evolved personal patina over time. For versatility, a broguéed rubber strap in dark grey or dark blue maintains formal elegance.

Changing the strap requires a spring bar tool (spring bar removal instrument). Position the tool in the small space between the case lug and the strap anchor bar, apply gentle pressure to compress the internal spring, then extract the bar. Repeat for both sides. When installing the new strap, ensure the bars are inserted symmetrically and there is no vertical play.

Yes, the model is fully compatible with quality aftermarket straps constructed for the 21mm lug width. We recommend bespoke artisanal straps built to measure to avoid fitting issues and unwanted wrist vibrations. Milano Straps offers a dedicated collection of 21mm straps with full customisation and extended warranty.

The lifespan of a leather strap depends on construction quality and material. A quality alligator strap with moderate daily use and regular maintenance lasts 5-7 years before requiring reconditioning. Shell cordovan tends to last longer (7-10 years) due to leather density. Vegetable-tanned calf leather has a lifespan of 4-6 years, while rubber straps maintain structural integrity for 8-10 years if protected from prolonged UV exposure.