Strap for Evidenza 33.1 Power Reserve

The lug width (distance between the lugs) of the Longines Evidenza L2.672.4.51.6 is 18 mm. This specific measurement requires custom-constructed straps, as standard industrial production does not adequately cover this intermediate width.

For the Evidenza L2.672.4.51.6, the ideal strap is dark brown or black alligator with traditional tanning. Alligator maintains elegant proportions on the compact 33.10 mm case and develops a natural patina over years of wear. Alternatively, vegetable-tanned calf leather offers a softer feel without compromising formal aesthetics.

To change the strap, you will need a steel spring bar tool and adequate lighting. Position the watch laterally, align the tool tip with the lug hole, apply controlled pressure to compress the internal spring, and remove the pin. Repeat from the opposite side. Installing the new strap follows the reverse procedure. For valuable mechanical watches, professional assistance is recommended.

Yes. milanostraps.it offers a complete collection of 18 mm straps customisable in materials (alligator, calf leather, shell cordovan), colours and length. The straps are handcrafted and compatible with your Evidenza lugs. For fully bespoke solutions including personal material selection, the Casati Milano atelier operates by appointment with an 18-month guarantee.

Durability depends on usage, tanning method and leather quality. An alligator strap with vegetable tanning used daily under normal conditions maintains structural functionality for 4–6 years; shell cordovan exceeds 7–8 years. Wear typically occurs at the lug articulation point and strap edge. The patina that develops over time does not compromise functionality; collectors value it as evidence of authenticity.