Strap for Master Collection 40 Date Stainless Steel / Blue-Diamond / Bracelet

The Longines Master Collection L2.793.4.97.6 features a 21mm <a href="/pages/termine-glossario/misura-ansa">lug width</a>, a relatively uncommon dimension that requires specific strap compatibility. Always verify this measurement before purchasing an aftermarket strap to ensure proper fit with the case lugs.

This model pairs excellently with <a href="/pages/termine-glossario/alligatore">alligator</a> leather featuring natural grain, or vegetable-tanned calf leather. Alligator delivers formal elegance and develops character patina over time, whilst vegetable-tanned calf suits daily wear whilst preserving classical refinement. For summer versatility, a canvas NATO strap respects the watch's sportive-classical identity without compromising aesthetics.

Strap replacement requires a spring bar tool of precise dimensions compatible with 21mm lugs. Secure the watch in a watchmaker's vice or stable work surface with the lug facing outward, gently depress the spring bar tool towards the case centre to release the pin, extract it, and repeat on the opposite lug. Reverse the procedure to fit the new strap.

Yes, the Longines Master Collection L2.793.4.97.6 accepts aftermarket straps compatible with 21mm <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-21mm">lug width</a>. Choose straps manufactured to identical thickness and width standards to prevent lateral play. MilanoStraps supplies personalised 21mm leather straps in various textures and colours.

A quality leather strap—alligator, calf, or <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a>—on a Master Collection L2.793.4.97.6 typically lasts 3–5 years with moderate daily wear. Durability depends on sun exposure, humidity, and frequency of use. <a href="/pages/termine-glossario/concia-vegetale">Vegetable-tanned</a> leather ages more gracefully than chrome-tanned variants, developing distinctive patina. Casati Milano provides an 18-month warranty on all bespoke straps.