The Best Straps for the Longines Legend Diver

At a Glance

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The Longines Legend Diver is one of those watches that punches so far above its price point it almost feels like a secret the watch industry forgot to gatekeep. This is a 300-metre dive watch with an internal rotating bezel, a clean no-date dial, and a case design lifted almost directly from Longines' 1960s archive. And in 39mm (ref. L3.764.4.50.0), it sits in the sweet spot where vintage proportions meet modern wearability.

What makes the Legend Diver special isn't just the specs. It's the way that super-compressor inspired internal bezel works: two crowns, one at 2 o'clock to rotate the bezel ring inside the crystal, and one at 4 o'clock for the time. That mechanism is a genuine conversation piece. It's also what keeps the dial so clean, because there's no external bezel cluttering up the profile. The result is a dive watch that wears more like a dress watch than it has any right to. The no-date dial adds to that purity. No cyclops, no date window breaking the symmetry. Just an honest dial that lets the design breathe.

At 20mm lug width, you've got one of the most common strap sizes in the industry, which means options are wide open. Here are my 8 picks for the Legend Diver, and why each one works.

Quick Specs

The 12.4mm case thickness makes this a relatively slim dive watch, which is great news for strap pairing. Unlike bulkier divers that demand thick straps for visual balance, the Legend Diver has the restraint to work with slim leather just as comfortably as it does with rubber. The 20mm lug width gives you access to the largest selection of aftermarket straps available.

Already know what you're looking for? Browse all Legend Diver-compatible straps on the Strap Finder →

1. Best Overall — Black CTS Rubber Tropical

If there was ever a watch that was born to wear a tropical rubber strap, it's the Legend Diver.

The Black CTS Rubber Tropical Strap features a vintage-inspired perforated pattern that echoes the rubber straps divers actually wore in the 1960s. On the Legend Diver, with its super-compressor inspired case and period-correct dial design, this isn't just a strap choice. It's a history lesson on your wrist. The tropical perforations aren't purely aesthetic either. They improve airflow against the skin, which matters when you're wearing a 300-metre dive watch in warm weather.

The strap is made from FKM fluoroelastomer, a rubber compound prized for its chemical stability and resistance to aging. Unlike silicone, FKM doesn't attract dust or lint. CTS stands for "Cut-To-Size," meaning you trim the strap to your exact wrist measurement. No excess tail, no strap keepers, no fuss. It ships with a custom deployant clasp featuring a leaf-spring mechanism with micro-adjustment positions, so you can fine-tune the fit throughout the day. At 4.0mm tapering to 3.3mm, the strap has enough substance to sit proportionally under the Legend Diver's 39mm case without adding unnecessary bulk.

The tropical pattern is what sets this apart from the smooth CTS rubber. On a heritage diver like the Legend Diver, those perforations complete the vintage picture in a way that smooth rubber simply can't. This is the strap that makes the Legend Diver look like it was pulled from a 1960s dive shop display case, except it's on your wrist and it's 2025.

If you want to explore other textures in the CTS lineup:

• Black Waffle — grid texture for a sportier, more modern feel
• Grey Smooth — understated contrast that plays well against the black dial
• Navy Smooth — adds depth without being loud

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2. Best Dressy — Black Alligator Signature (Matte)

Most people think you need a dress watch to dress up. The Legend Diver respectfully disagrees.

The Matte Black Alligator Signature Strap transforms the Legend Diver into something you could confidently wear to a dinner or under a blazer. The matte finish is key here. A glossy alligator strap would feel too formal on a dive watch, but the matte treatment dials back the shine while keeping all the texture and prestige of genuine alligator. Each scale catches light just enough to add depth without screaming for attention.

These straps take hours of handwork from start to finish. The construction uses saddle stitching with linen thread, and the edges are sealed and sanded through multiple layers of paint. The Signature profile, padded from 4.5mm at the lug end tapering to 2.2mm at the buckle, gives the strap enough body to sit proportionally under the watch. On a 39mm case at 12.4mm thick, the Signature padding feels substantial without being overwhelming. It's soft and flexible from day one with zero break-in.

The choice of black alligator on a black-dial Legend Diver creates a monochromatic look that's sleek, cohesive, and surprisingly versatile. It doesn't try to compete with the dial. It simply extends the watch's visual language down to the wrist. The internal bezel, which is already the most refined feature of the Legend Diver, gets even more room to shine.

If you want to add some contrast to the dressy pairing:

• Matte Dark Brown Alligator Signature — warmer, earthier tone that pairs beautifully with steel
• Matte Navy Alligator Signature — subtle colour pop that still reads as formal

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3. Best Everyday — Black Epsom Slim

Your daily strap needs to handle whatever you throw at it and still look sharp at the end of the day. Epsom is built for exactly that.

The Black Epsom Slim Strap is made from Epsom calfskin, tanned by Haas, the tannery that supplies to Hermès. The defining characteristic is its cross-hatch grain embossing, which is applied to the surface during the tanning process. This embossing isn't just cosmetic. It creates a barrier that's highly resistant to scratches, moisture, and everyday wear. Epsom doesn't patina or age dramatically. It looks as clean six months from now as it does on day one, which is precisely the point if you want a set-it-and-forget-it daily strap.

At 2.2mm throughout, the Slim profile keeps things lightweight and low-key. On the Legend Diver's 12.4mm case, a slim strap creates a balanced, understated look that works equally well with a t-shirt and jeans or a button-down and chinos. There's no padded taper, no visual drama. Just a clean, reliable strap that does its job without drawing attention to itself.

Black is the most versatile starting point, but the Epsom range goes wide if you want to build a rotation:

• Navy Epsom Slim — enough colour to be interesting, still pairs with everything
• Taupe Epsom Slim — the warm neutral that punches above its price
• Grey Epsom Slim — cool, modern, looks great against stainless steel

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4. Best Minimalist — Black Saffiano Stitchless

The Legend Diver's dial is already a masterclass in restraint: no date, no unnecessary text, just applied markers and those beautifully simple hands. A stitchless strap takes that same philosophy and runs with it.

The Black Saffiano Stitchless Strap strips away everything that isn't essential. No stitching at the lug area, no visual clutter. Just leather and edge paint. The Saffiano's distinctive cross-hatch grain pattern, first popularized by Prada, takes centre stage. That pattern is created by embossing a cross-hatch onto wax laid over calfskin, which makes the surface highly resistant to scratches and water. At 2.2mm, it's slim enough to feel refined without disappearing under the case.

On the Legend Diver, this pairing creates something really special. The stitchless design mirrors the dial's minimalist ethos, and the clean lines of the strap complement the smooth bezel profile. There's no external rotating bezel on this watch, just that flush, polished case edge. A stitchless strap respects that simplicity rather than competing with it. It bridges smart casual and dressy territory without committing too hard in either direction.

If you prefer the same Saffiano leather with more structure, the Black Saffiano Signature adds the padded profile and saddle stitching for a more traditional look. And the Navy Saffiano Stitchless offers a subtle colour alternative that still reads as minimalist.

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5. Best Sporty — Olive Green CTS Rubber Waffle

If the Tropical rubber is the Legend Diver's period-correct soulmate, the Waffle is its weekend adventure partner.

The Olive Green CTS Rubber Waffle Strap features a grid-textured pattern inspired by the rubber straps divers wore in the 1980s. The waffle design uses a combination of pyramid-shaped grooves and triangle ridges on the underside, creating a strap with real visual depth. Under the light, the pattern catches and reflects in a way that's almost holographic. It's a small detail, but it gives the strap a technical, sporty character that sets it apart from smooth rubber.

Olive green on the Legend Diver is a pairing that shouldn't work as well as it does. The military-adjacent colour taps into the watch's tool-watch DNA while adding a visual warmth that black rubber can't. Against the black dial and steel case, the olive creates enough contrast to be interesting without being loud. Think field watch meets dive watch. It works particularly well in outdoor settings, which is exactly where you'd want to be wearing a 300-metre water-resistant watch anyway.

Like all CTS straps, you trim it to your exact wrist measurement and secure it with the included deployant clasp. Fully waterproof, zero break-in, and genuinely comfortable from the first wear.

Other Waffle colours worth considering:

• Black Waffle — sporty texture, stealthy colour
• Navy Waffle — deep, rich tone that pairs well with steel
• Grey Waffle — understated contrast for the monochrome crowd

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6. Best Casual — Dark Brown Pueblo Slim

Here's where the Legend Diver's vintage character really comes alive.

The Dark Brown Pueblo Slim Strap is made from Pueblo leather, a vegetable-tanned calfskin produced by Badalassi Carlo in Tuscany. Pueblo is famous in the leather community for one reason above all others: it develops an incredible patina. The leather has a slightly rough, natural texture out of the box, almost like well-worn suede that's been polished by years of handling. Within weeks of daily wear, the surface starts to smooth out, darken in the high-contact areas, and develop a unique sheen that's entirely your own.

On the Legend Diver, this aging process creates a beautiful narrative contrast. You've got a watch that's inspired by 1960s diving heritage, paired with a strap that actually looks like it's lived a bit. The dark brown tone is warm and grounded, adding an earth-toned casualness to the otherwise sleek stainless steel case. At 2.2mm in the Slim profile, it doesn't add bulk, and it drapes naturally around the wrist from day one. No break-in period needed.

If you're the kind of person who appreciates how a leather wallet or belt breaks in over time, Pueblo is your strap material. Just know that it's not water-resistant, so swap to rubber before you hit the water.

Other Pueblo colours for the patina enthusiast:

• Cognac Pueblo Slim — lighter starting point with the most dramatic colour shift over time
• Olive Pueblo Slim — earthy green that ages into a deep olive

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7. Wildcard — Brown Sailcloth Signature

Brown on a dive watch. Hear me out.

The Brown Sailcloth Signature Strap is one of those combinations that shouldn't work on paper but looks absolutely right on the wrist. The sailcloth weave pattern is crafted from FKM rubber, so you get the rugged, textured look of traditional sailcloth without the fraying, water absorption, or break-in that comes with the real thing. Inside, there's a layer of calfskin padding that gives it the Signature profile: 4.5mm thick at the lug end, tapering to 2.2mm at the buckle.

What makes brown work on the Legend Diver is context. This is a heritage piece with vintage DNA. Brown leather and brown sailcloth have been paired with dive watches since the 1960s and '70s, when divers didn't have ten straps in a rotation. They had one strap, and it aged. The brown sailcloth channels that worn-in, lived-with look while being completely waterproof and maintenance-free. The sailcloth weave texture catches light differently than smooth rubber, giving the strap a technical character that bridges leather warmth and rubber practicality.

The padded Signature profile adds just enough visual weight to match the Legend Diver's case presence, and the water-resistant construction means you don't have to think twice about wearing it to the beach. This is the strap for people who want their dive watch to look like it's actually been diving.

Alternatives in the sailcloth family:

• Black Sailcloth Signature — plays it safe while keeping the texture
• Olive Green Sailcloth Signature — military-field vibe on a dive watch

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8. Best Fabric — Black Delcro Regular

Sometimes you just want something light, fast, and unfussy. The Delcro is exactly that.

The Black Delcro Regular is Delugs' take on the hook-and-loop strap, and at $50 it's the most accessible entry point in this lineup. Don't let the price fool you into thinking it's an afterthought. The Delcro uses a refined closure system that sits flat against the wrist, with no excess bulk or uncomfortable overlap. It's infinitely adjustable, fits any wrist size, and takes about two seconds to put on or take off.

On the Legend Diver, the Delcro adds a casual, almost utilitarian character that leans into the watch's tool-watch heritage. The black fabric keeps things cohesive with the dial, and the minimal construction means the watch itself does all the talking. At this thickness, the strap practically disappears under a shirt cuff. It's the strap you reach for on weekends, during travel, or when you just want to grab your watch and go without thinking about it.

The Delcro is also a great option for hot climates and humid weather. Fabric breathes better than leather and dries faster than anything else in this list. For a 300-metre dive watch that was designed for tropical waters, there's a certain logic to pairing it with a strap that handles the heat.

Other Delcro options:

• Black/Grey Delcro — two-tone for a bit more visual interest
• Grey/Black Delcro — reversed contrast that pairs beautifully with steel

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A Note on Buckle Colour

Quick but important: always match your buckle to your case metal. The Legend Diver's stainless steel case calls for a silver (brushed or polished) buckle. All Delugs leather straps ship with a pin buckle and can be upgraded to a Spring Deployant Clasp for extra security and convenience. The CTS rubber straps already include a deployant clasp in the box.

How to Change the Strap on Your Longines Legend Diver

Good news: the Legend Diver comes from the factory on a strap (not a bracelet), so there's no bracelet removal step to worry about. Swapping straps is as simple as it gets.

All Delugs straps come with quick-release spring bars already pre-installed, so changing straps is completely tool-free. Here's how:

1. Prepare your workspace. Lay the watch face-down on a soft cloth or microfiber pad to protect the caseback from scratches.
2. Release the spring bar. Locate the small lever on the quick-release spring bar. Pull it back with your fingernail or fingertip to compress the bar.
3. Remove the strap. While holding the lever, angle the strap out from between the lugs. Repeat for the other side.
4. Insert the new strap. Slide one end of the spring bar into the lug hole. Pull the lever on the quick-release spring bar knob, guide the entire spring bar into the opposite lug hole, and then release the knob. You should hear a small click when the spring bar extends and seats into the lug hole.
5. Check the fit. Give the strap a gentle tug to make sure both spring bars are securely locked in. If there's any play, reseat the spring bar.

The entire process takes under a minute once you get the hang of it. No spring bar tool required.

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Frequently Asked Questions

What lug width is the Longines Legend Diver?

The Longines Legend Diver 39mm (ref. L3.764.4.50.0) has a 20mm lug width, which is one of the most common sizes in the watch industry. Any aftermarket strap in 20mm will fit. Note that the larger 42mm Legend Diver uses a different lug width, so always double-check your specific reference number.

Can you wear a leather strap on a dive watch?

Absolutely. While leather isn't water-resistant, most people aren't diving with their Legend Diver on a daily basis. For everyday wear, leather adds warmth, character, and a touch of formality that rubber can't match. Just swap to a rubber or fabric strap before you hit the water, and you're covered.

What's the difference between CTS Tropical and CTS Waffle rubber?

Both are made from the same FKM fluoroelastomer and use the same Cut-To-Size deployant system. The difference is in the pattern. The Tropical features vintage-inspired perforations reminiscent of 1960s dive straps. The Waffle has a grid texture with pyramid-shaped grooves, inspired by the rubber straps of the 1980s. On the Legend Diver, the Tropical is the more historically authentic choice, while the Waffle leans sportier and more modern.

What's the internal bezel on the Legend Diver?

The Legend Diver uses a super-compressor inspired internal rotating bezel. Instead of a conventional external bezel that you grip and turn, the bezel sits inside the crystal and is operated by the crown at 2 o'clock. The separate crown at 4 o'clock controls the time. This mechanism keeps the case profile smooth and clean, and it's a faithful reproduction of the system Longines used in their original 1960s dive watches.

Is the Legend Diver too dressy for rubber?

Not at all. The Legend Diver is a 300-metre dive watch at its core, and rubber is its natural habitat. What makes the Legend Diver special is its ability to wear both dressy and sporty depending on the strap. The clean no-date dial and slim 12.4mm profile let it swing between a Tropical rubber strap on the weekend and an alligator strap for dinner without either combination feeling forced.

Do aftermarket straps void the Longines warranty?

No. Changing the strap does not void the Longines manufacturer warranty. The warranty covers the movement and case, not the strap. As long as you're careful not to scratch the lugs during the swap (use the quick-release lever, not a blade), you're completely fine.

What strap thickness works best on the Legend Diver?

The Legend Diver's 12.4mm case thickness is moderate for a dive watch, which gives you flexibility. Slim 2.2mm straps (like the Epsom or Pueblo Slim) create a lightweight, casual look. Padded Signature straps at 4.5mm add visual weight and formality. The CTS rubber at 3.3-4.0mm sits right in the middle. For most people, any thickness in the 2.2mm to 4.5mm range will look proportional.

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Finding Your Strap

The Legend Diver is one of those rare watches that genuinely transforms with every strap change. Tropical rubber connects it to its 1960s roots. Alligator takes it to dinner. Pueblo leather lets it age alongside you. The beauty of the 20mm lug width is that your options are practically unlimited, and at this price point, building a small rotation is completely realistic.

Use the Longines Legend Diver Strap Finder to see every compatible strap in one place, filtered to your exact watch.

Not sure which strap is right for your specific Legend Diver? Our team is available 24/7 via live chat — drop us a message and we'll help you find the perfect match for your watch, wrist size, and style.

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About Delugs

Founded in 2018 and headquartered in Singapore, Delugs is dedicated to elevating the experience of watch ownership through the simple yet powerful act of strap changing. We believe that straps are integral to how a timepiece is worn, perceived, and enjoyed. Our mission is to make strap changing a lifestyle — an everyday act of self-expression and versatility.

Delugs is an independent brand with a global community of clients, with a strong online presence and growing physical retail footprint. Our direct-to-consumer focus keeps us closely connected with the watch enthusiast community — fostering conversations, hosting events, and helping shape a more inclusive and expressive culture around watch collecting.

Our catalogue spans leather, rubber, and fabric straps, with options for every watch and every occasion. We are committed to craftsmanship and quality, product design and innovation, and outstanding customer service.

Visit our flagship boutique at Raffles Hotel, Singapore →

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— Marcus