Longines · Legend Diver

Strap for Legend Diver Date Stainless Steel / Grey

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceL3.774.4.70.2
FamilyLegend Diver
MovementLongines caliber L888.5 hours, minutes, seconds | date | chronometer
Year2022
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Legend Diver L3.774.4.70.2

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Legend Diver L3.774.4.70.2, seen from the bench

The Longines Legend Diver is a dive watch that echoes the design of the brand's historic models. It is powered by the automatic caliber L888.5 with chronometer certification and displays hours, minutes, seconds and date. The watch features 22mm lugs and retains the vintage aesthetic of classic dive watches.

Frequently asked questions

What is the lug width of the Longines Legend Diver L3.774.4.70.2?

The Longines Legend Diver L3.774.4.70.2 is equipped with a 22mm lug width. This measurement is determined by the 42mm case diameter and the position of the threaded tube crown. To verify the compatibility of a new strap, measure the space between the two lug attachment pins with a digital caliper: the distance must be between 22.0 and 22.2mm. Milano Straps offers a complete range of customizable 22mm straps online.

Which strap is recommended for the Longines Legend Diver L3.774.4.70.2?

For this vintage 1960s-inspired diver, the ideal choice depends on usage. For formal daily wear, we recommend vegetable-tanned Italian or French leather in tobacco brown or black: it develops authentic patina over time and enhances the black dial. For frequent recreational diving, shell cordovan offers natural water resistance and develops a deep burgundy patina. For intensive maritime environments, a NATO nylon Cordura strap ensures rapid drying even with a wetsuit. Black alligator remains the most versatile choice, maintaining both elegance and water resistance simultaneously.

How do I change the strap on the Longines Legend Diver L3.774.4.70.2?

Strap replacement is a straightforward operation. Position the watch with the dial facing downwards. Use a thin tool (strap lever, small flathead screwdriver, or dedicated kit) to gently push the lug pin towards the inside of the case, passing through the small hole located on the lug wall. The pin will retract and you can extract the lug laterally. Repeat from the other side. To install the new strap, align the pins with the lug openings and insert them until a click is heard. Verify the lug is fully locked before wearing the watch.

Can I use an aftermarket strap on this watch?

Yes, any strap with a 22mm lug width is compatible with the Longines Legend Diver L3.774.4.70.2. Milano Straps specialises in artisanal straps in vegetable-tanned leather, shell cordovan, alligator, and technical materials, all available in 22mm and customizable in length, stitching, and initials. Using quality aftermarket straps does not compromise the movement warranty, provided the case is not damaged during the replacement. We recommend having a professional perform the first strap change if you are unfamiliar with the tools.

How long does a leather strap last on the Legend Diver L3.774.4.70.2?

The longevity of a leather strap depends on the material and usage. A quality vegetable-tanned leather strap, used under normal conditions (not daily and not in constant contact with water), typically lasts 2-4 years before replacement is required. Shell cordovan, thanks to its density and natural water resistance, can last 5-7 years even with frequent use and humidity. Alligator offers similar longevity to shell cordovan. Rubber and NATO straps typically last 3-5 years. Milano Straps guarantees its artisanal straps for 18 months.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only