Strap for Master Collection 40 Date Stainless Steel / Grey Roman / Alligator XL

The lug width of the Longines Master Collection L2.793.4.71.5 is 21mm. This dimension is calculated to dialogue perfectly with the geometry of the 40mm stainless steel case, maintaining the balanced proportions that characterise the Master collection. To verify it, measure the spring bar slot at its widest point with a digital calliper.

Vegetable-tanned alligator represents the ideal choice: the controlled grain evolves over time, creating personal patina without betraying the formal elegance of the watch. Cordovan is the noble alternative for those seeking greater plasticity and deeper colour. Soft calf with alligator finish on the surface allows a balance between comfort and daily formality.

Obtain a specific tool (spring bar tool) or consult a watchmaker. Insert the flat tip into the spring bar slot, gently lift the internal spring, remove the old strap, insert the new one aligning it correctly and press until the spring returns to position. Ensure the spring bar is securely fixed before wearing the watch.

Yes, on milanostraps.it you will find a selection of 21mm compatible straps ready for shipment, customisable in length, initials and thread colour. Materials range from alligator, cordovan, calf to textile and rubber options. Each strap is packaged with attention to the specific proportions of the model.

A quality leather strap, with vegetable tanning, typically lasts 3-5 years of daily use, depending on sun exposure, humidity and cleaning frequency. Alligator tends to last longer due to its naturally more robust structure. Well-cared-for cordovan can exceed 5 years. The guarantee offered on artisanal straps is generally 18-24 months.