Longines Conquest 41mm · Ref. LONGINES CONQUEST · 21mm lug · 41mm case
At a Glance
| # | Best For | Strap | Material | Thickness |
|---|---|---|---|---|
| 1 | Overall / First Purchase | Sapin Chevre Slim Strap | Chèvre | 2.2mm |
| 2 | Dressy / Formal | Matte Mahogany Alligator Signature Strap | Alligator | 4.5–2.2mm |
| 3 | Everyday / Casual | Brown Buttero Slim Strap | Buttero Calfskin | 2.2mm |
| 4 | Minimalist / Refined | Black Shell Cordovan Slim Strap | Shell Cordovan | 2.2mm |
| 5 | Casual / Relaxed | Tan Crazy Horse Side-Stitch Strap | Waxy Leather | 2.5mm |
| 6 | Active / Sporty | Red CTS Rubber Strap | FKM Rubber | 4.0–3.3mm |
| 7 | Comfort / Wildcard | Tapestry Grey Ostrich Leg Signature Strap | Ostrich | 4.5–2.2mm |
Longines is the definition of quiet luxury — no need to shout when the watch speaks for itself. The Conquest 41mm (ref. LONGINES CONQUEST) is a case in point. The finishing and attention to detail speak for themselves. A 21mm lug width and that unmistakable character make this watch a natural platform for strap changes.
At 41mm across and 11.8mm thick, the Conquest 41mm wears like a watch that was designed to be lived with — not just admired behind glass. A strap change can take it from boardroom to weekend without missing a beat.
Here are my 7 picks — and why each one works.
Quick Specs
| Case diameter | 41mm |
| Lug width | 21mm |
| Lug-to-lug | 50mm |
| Case thickness | 11.8mm |
| Water resistance | 30m (3 bar) |
| Crystal | Sapphire with anti-reflective coating |
| Case material | |
| Movement | Quartz (Longines Caliber L157) |
The 21mm lug width means your options are curated but well-covered. Already know what you're looking for? Browse all Longines Conquest 41mm-compatible straps on the Strap Finder →
1. Best Overall — Sapin Chevre Slim Strap
Your first strap upgrade should feel like an obvious improvement. This one does.
The Sapin Chevre Slim Strap is made from chevre (goatskin) leather, sourced from the Alran tannery. The natural pebbled grain is finer than Epsom and slightly shiny — it looks luxurious without trying too hard. Chevre is also impressively water and scratch resistant for a natural leather. At 2.2mm thick, it balances presence and wearability nicely.
The Longines Conquest 41mm's 41mm case is ideally proportioned for this strap. Whether you are wearing it casually or dressing it up, the combination feels intentional. It is the kind of pairing where both the watch and strap look better together than apart.
Simple, effective, and genuinely enjoyable to wear.
Alternatives in the same family:
- Light Grey Chevre Slim Strap
- Colibri Chevre Slim Strap
- Lavender Chevre Slim Strap
- Gold Chevre Slim Strap
2. Best Dressy — Matte Mahogany Alligator Signature Strap
The Longines Conquest 41mm cleans up remarkably well — and this strap is the reason.
The Matte Mahogany Alligator Signature Strap is crafted from genuine alligator leather — not embossed calfskin, the real thing. Each scale pattern is unique, and the matte finish gives it a refined presence that catches light without being flashy. The leather is supple from the start with minimal break-in needed. At 4.5–2.2mm thick, it balances presence and wearability nicely.
What makes this pairing work on the Longines Conquest 41mm is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 41mm case, the proportions stay balanced.
A combination that's greater than the sum of its parts.
Worth a look in other colourways:
- Matte Black Alligator Signature Strap
- Matte Navy Alligator Signature Strap
- Matte Himalayan Alligator Signature Strap
- Matte Dark Brown Alligator Signature Strap
3. Best Everyday — Brown Buttero Slim Strap
For daily wear, comfort and versatility matter more than anything else.
The Brown Buttero Slim Strap features Buttero leather from the Walpier tannery in Italy. This vegetable-tanned leather develops one of the most beautiful patinas in watchmaking — scratches blend into the surface and the colour deepens over time. If you enjoy watching your strap age gracefully, this is the one. At 2.2mm thick, it balances presence and wearability nicely.
Paired with the Longines Conquest 41mm's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The 11.8mm case thickness means a padded strap like this one feels proportional and substantial.
The kind of strap that earns a permanent spot in your rotation.
If this style appeals but you want a different tone:
- Chestnut Buttero Slim Strap
- Taupe Buttero Slim Strap
- Natural Buttero Slim Strap
- Green Buttero Slim Strap
4. Best Minimalist — Black Shell Cordovan Slim Strap
Sometimes less is more. This strap proves it.
The Black Shell Cordovan Slim Strap is crafted from premium materials with careful attention to detail and construction quality. At 2.2mm thick, it balances presence and wearability nicely.
On the Longines Conquest 41mm, this strap preserves the watch's go-anywhere character. The 41mm case at 11.8mm thick pairs naturally with the padded construction without creating any imbalance on the wrist.
Simple, effective, and genuinely enjoyable to wear.
Alternatives in the same family:
- Navy Shell Cordovan Slim Strap
- Cognac Shell Cordovan Slim Strap
- Natural Shell Cordovan Slim Strap
- Green Shell Cordovan Slim Strap
5. Best Casual — Tan Crazy Horse Side-Stitch Strap
Casual doesn't mean careless — this strap adds character without trying too hard.
The Tan Crazy Horse Side-Stitch Strap uses crazy horse leather — an oil-infused leather that develops character with every scratch and mark. Rub a scratch with your thumb and it blends right back in. It is built for people who actually wear their watches, not baby them. At 2.5mm thick, it balances presence and wearability nicely.
Paired with the Longines Conquest 41mm's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The 11.8mm case thickness means a padded strap like this one feels proportional and substantial.
It's the kind of pairing that makes you wonder why you didn't try it sooner.
Other colours worth considering:
- Black Crazy Horse Side-Stitch Strap
- Mocha Crazy Horse Side-Stitch Strap
- Cognac Crazy Horse Side-Stitch Strap
- Rust Crazy Horse Side-Stitch Strap
6. Best Sporty — Red CTS Rubber Strap
Sport straps need to perform — water resistance, comfort, durability. This checks every box.
The Red CTS Rubber Strap is made from FKM rubber — a high-performance elastomer that resists chemicals, heat, and ageing. Unlike silicone, it does not attract dust or lint. Cut-to-size construction means you trim it to your exact wrist measurement — no leftover tail, no keepers. At 4.0–3.3mm thick, it balances presence and wearability nicely.
What makes this pairing work on the Longines Conquest 41mm is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 41mm case, the proportions stay balanced.
Alternatives in the same family:
7. The Wildcard — Tapestry Grey Ostrich Leg Signature Strap
Every rotation needs a curveball. This is mine.
The Tapestry Grey Ostrich Leg Signature Strap is made from ostrich leg leather. Unlike the body leather, ostrich leg has a distinctive scale-like texture with natural ridges and patterns that give it an almost reptilian character. It is soft, supple, and needs virtually no break-in time. At 4.5–2.2mm thick, it balances presence and wearability nicely.
What makes this pairing work on the Longines Conquest 41mm is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 41mm case, the proportions stay balanced.
A combination that's greater than the sum of its parts.
Worth a look in other colourways:
- Blue Jean Ostrich Leg Signature Strap
- Copper Ostrich Leg Signature Strap
- Dark Grey Ostrich Leg Signature Strap
- Forest Green Ostrich Leg Signature Strap
A Note on Buckle Colour
Quick but important: always match your buckle to your case. The Longines Conquest 41mm's 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. All Delugs straps come with quick-release spring bars pre-installed, so swapping straps takes seconds.
How to Change the Strap on Your Longines Conquest 41mm
Swapping straps on the Longines Conquest 41mm is one of the easiest upgrades you can make — and with Delugs straps, you don't even need a tool.
If your Longines Conquest 41mm came on a bracelet, you'll first need to remove it. The easiest way to do this at home is with a Bracelet Removal Tool, which lets you compress the spring bars without risking scratches to the lugs or caseback. Once the bracelet is off, you can slide your new Delugs strap straight in.
All Delugs straps come with quick-release spring bars already pre-installed, so changing straps is completely tool-free. Here's how:
- Prepare your workspace. Lay the watch face-down on a soft cloth or microfiber pad to protect the caseback from scratches.
- 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.
- Remove the strap. While holding the lever, angle the strap out from between the lugs. Repeat for the other side.
- 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.
- 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. The Longines Conquest 41mm uses a standard 21mm lug width, and all Delugs straps in 21mm will fit perfectly.
Frequently Asked Questions
What is the lug width of the Longines LONGINES CONQUEST?
The Longines LONGINES CONQUEST has a 21mm lug width. While 21mm is less common than 20mm, there is still a strong selection of quality straps available. All Delugs straps are available in 21mm.
What is the reference number for the Longines Conquest 41mm?
The reference number for the Longines Conquest 41mm is LONGINES CONQUEST. You can find this on the caseback of your watch or on the original paperwork. Knowing your reference number helps ensure you get the right lug width when ordering a strap.
Can I use a dressy leather strap on a Longines versatile watch?
The Conquest 41mm is one of the most versatile watches in the Longines lineup — it takes both dressy and casual straps equally well. That's part of what makes it such a rewarding watch for strap changes. Don't be afraid to experiment.
Do Delugs straps come with spring bars?
Yes — every Delugs strap comes with quick-release spring bars pre-installed. This means you can change straps by hand in seconds, without needing any tools. The quick-release mechanism uses a small lever that you pull with your fingertip to compress the spring bar.
What is the best strap material for the Longines Conquest 41mm?
The Conquest 41mm's versatile nature means it works with almost everything. Start with what matches your most common wearing occasion — rubber or sailcloth for active use, nubuck or waxy leather for everyday, and alligator or saffiano for dressier moments. The Strap Finder makes it easy to browse by material and style.
Does Longines use quick-release spring bars?
Most Longines watches use standard spring bars that require a tool to remove. All Delugs straps come with quick-release spring bars pre-installed, so once you make the switch, future changes are completely tool-free.
Where can I find straps compatible with the Longines LONGINES CONQUEST?
The Longines Strap Finder shows every Delugs strap compatible with the LONGINES CONQUEST, filtered by lug width and style. You can also use the general Strap Finder to browse by brand, collection, and material. If you need help choosing, our team is available 24/7 via live chat.
Finding Your Strap
The beauty of the Longines Conquest 41mm is that it rewards experimentation. A dressy alligator for the office, nubuck for the weekend — each strap brings out a different side of the watch.
Use the Longines Conquest 41mm Strap Finder to see every compatible strap in one place, filtered to your exact reference. Or if you'd rather explore by feel, the general Longines Strap Finder lets you browse the full lineup and find your match.
Not sure which strap is right for your specific Conquest 41mm? 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.
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. We also work closely with watch brands to craft straps that complement their timepieces, bridging the gap between brand and collector, form and function.
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. We offer watch owners the freedom to change straps as easily as changing outfits, and the opportunity to engage more deeply with the watches they love.
Visit our flagship boutique at Raffles Hotel, Singapore →
— Marcus
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