Strap for Legend Diver 36 Stainless Steel / Black / Strap

The lug width of the Longines Legend Diver L3.374.4.50.0 is 19mm. This dimension, measured internally between the lug tubes, is an authentic characteristic of this model and echoes the historical proportion of the 1959 Skin Diver. Any compatible strap must fit precisely to this specification, with no lateral play or constraint.

The Legend Diver, with its diving heritage and 36mm steel case, pairs naturally with alligator straps in black or cognac for formal contexts, vegetable-tanned calf for daily wear with evolving patina, shell cordovan for absolute longevity, or treated rubber for genuine diving. Material choice depends on intended use: understated elegance with reptile leather, daily intimacy with calf, extreme durability with cordovan, technical functionality with rubber.

Strap replacement is accomplished via spring bars anchoring the strap to the lugs. Using a spring bar tool, compress the bars laterally to release them from the lug holes, sliding out the worn strap. The new 19mm strap is installed by aligning the tubes to the lugs and allowing the spring bars to snap into the holes. A specialized atelier ensures the operation without risk to the case.

Yes, provided the lug width is precisely 19mm. Quality aftermarket straps from Swiss or Italian makers, crafted in alligator, vegetable-tanned calf, shell cordovan, or rubber, are fully compatible. The 19mm specification, being non-standard in modern production, requires specialized suppliers maintaining catalogues for rare dimensions. Selecting noble materials and refined finishing upholds the Legend Diver's dignity.

A quality calf or alligator strap, with vegetable tanning and natural treatment, typically lasts 3–5 years in daily wear, provided careful maintenance: avoid prolonged moisture, expose to sunlight for natural aeration, clean with soft cloth. Shell cordovan, by superior material density, reaches 7–10 years. Straps crafted by ateliers with consolidated stitching typically outlast standardised industrial production.