Longines
Legend Diver L3.764.4.50.0— lug 20mm
Longines Legend Diver L3.764.4.50.0: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L3.764.4.50.0The essential strap measurement.
Browse 20mm straps →L3.764.4.50.0
Longines caliber L888.6 Hours, Minutes, Seconds | Chronometer
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Legend Diver
FAQ
What is the lug width of the Longines Legend Diver L3.764.4.50.0?
The Longines Legend Diver L3.764.4.50.0 features a 20-millimetre lug width, which refers to the space between the two lugs on the case. This measurement is critical when selecting a compatible strap. To verify, use a calliper positioned perpendicular to the wrist, measuring from one lug to the opposite lug.
Which strap is most suitable for the Longines Legend Diver L3.764.4.50.0?
For this stainless steel model with professional diving heritage, three primary options are recommended: genuine alligator (refined patina development), smooth calf leather (understated formality), or NATO/rubber (sports practicality). milanostraps.it offers a complete 20mm strap catalogue with premium materials and bespoke customisation through Casati Milano atelier.
How do I change the strap on my Longines Legend Diver L3.764.4.50.0?
Remove the old strap using a springbar tool—a small instrument that compresses the spring-loaded pins. Insert the flat tip under the pin on one side, compress the internal spring, and extract the pin. Repeat on the opposite side. Insert the new strap's pins through the case lugs, ensuring they lock completely. Verify the strap sits flush without misalignment.
Can I use an aftermarket strap of a different brand on my Longines Legend Diver?
Yes, provided the strap has a 20-millimetre lug width. The Longines L3.764.4.50.0 is compatible with any strap of this measurement, regardless of brand. milanostraps.it offers artisanal straps of exceptional quality, with customisation available through Casati Milano atelier and up to 18 months warranty.
How long does a leather strap last on the Longines Legend Diver L3.764.4.50.0?
Leather strap lifespan depends on usage and maintenance: under normal conditions (3–5 days per week, protection from excessive humidity), premium leather such as alligator or calf lasts 2–4 years. Daily wear or frequent moisture exposure reduces durability. milanostraps straps feature artisanal leather and reinforced stitching, extending longevity. To maximise lifespan, avoid repeated diving with leather straps and periodically apply appropriate conditioner.