Marathon TSAR 36mm · Ref. MARATHON TSAR 36MM · 18mm lug
At a Glance
| # | Best For | Strap | Material | Thickness |
|---|---|---|---|---|
| 1 | Overall / First Purchase | Colibri Chevre Slim Strap | Chèvre | 2.2mm |
| 2 | Dressy / Formal | Glossy Lilac Crocodile Signature Strap | Crocodile | 4.5–2.2mm |
| 3 | Everyday / Casual | Natural Pueblo Slim Strap | Pueblo Calfskin | 2.2mm |
| 4 | Minimalist / Refined | Black Shell Cordovan Slim Strap | Shell Cordovan | 2.2mm |
| 5 | Casual / Relaxed | Cream Baranil Signature Strap | Baranil Calfskin | 4.5–2.2mm |
| 6 | Active / Sporty | Grey Pilot CTS Rubber Strap | FKM Rubber | 4.0–3.3mm |
| 7 | Comfort / Wildcard | Jean Grey Babele Slim Strap | Babele Calfskin | 2.2mm |
What makes the Marathon TSAR 36mm (ref. MARATHON TSAR 36MM) special is not just one thing — it is the combination. The movement inside is refined, precise, and built to last. The finishing and attention to detail speak for themselves. And at 18mm lug width, it is a watch that rewards experimentation with straps.
At across and thick, the TSAR 36mm 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 | |
| Lug width | 18mm |
| Lug-to-lug | |
| Case thickness | |
| Water resistance | |
| Crystal | |
| Case material | |
| Movement |
The 18mm lug width means your options are curated but well-covered. Already know what you're looking for? Browse all Marathon TSAR 36mm-compatible straps on the Strap Finder →
1. Best Overall — Colibri Chevre Slim Strap
Every watch needs a go-to strap, and for the Marathon TSAR 36mm, this is it.
The Colibri 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.
Paired with the Marathon TSAR 36mm's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The case thickness means a padded strap like this one feels proportional and substantial.
Worth a look in other colourways:
- Light Grey Chevre Slim Strap
- Lavender Chevre Slim Strap
- Gold Chevre Slim Strap
- Red Chevre Slim Strap
2. Best Dressy — Glossy Lilac Crocodile Signature Strap
There's dressy, and then there's refined. This strap lands squarely in refined territory.
The Glossy Lilac Crocodile Signature Strap is made from genuine crocodile leather with a distinctive scale pattern that no embossed leather can replicate. The texture adds visual depth and character that works equally well with a suit or a smart-casual outfit. At 4.5–2.2mm thick, it balances presence and wearability nicely.
The Marathon TSAR 36mm's 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.
A combination that's greater than the sum of its parts.
Worth a look in other colourways:
- Glossy Caramel Crocodile Signature Strap
- Glossy Emerald Crocodile Signature Strap
- Glossy Lagoon Blue Crocodile Signature Strap
- Glossy Taupe Brown Crocodile Signature Strap
3. Best Everyday — Natural Pueblo Slim Strap
The strap you reach for without thinking — that's what an everyday pick should be.
The Natural Pueblo 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.
What makes this pairing work on the Marathon TSAR 36mm is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a case, the proportions stay balanced.
Simple, effective, and genuinely enjoyable to wear.
Alternatives in the same family:
- Grigio Pueblo Slim Strap
- Dark Brown Pueblo Slim Strap
- Navy Pueblo Slim Strap
- Cognac Pueblo Slim Strap
4. Best Minimalist — Black Shell Cordovan Slim Strap
Minimalism isn't about doing less. It's about doing exactly what's needed.
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.
Paired with the Marathon TSAR 36mm's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The case thickness means a padded strap like this one feels proportional and substantial.
Other colours worth considering:
- Navy Shell Cordovan Slim Strap
- Cognac Shell Cordovan Slim Strap
- Natural Shell Cordovan Slim Strap
- Green Shell Cordovan Slim Strap
5. Best Casual — Cream Baranil Signature Strap
Weekend straps should feel effortless. This one nails that.
The Cream Baranil Signature Strap is crafted from premium materials with careful attention to detail and construction quality. At 4.5–2.2mm thick, it balances presence and wearability nicely.
The Marathon TSAR 36mm's 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.
The kind of strap that earns a permanent spot in your rotation.
If this style appeals but you want a different tone:
- Fauve Baranil Signature Strap
- Black Baranil Signature Strap
- Cobalt Baranil Signature Strap
- Gold Baranil Signature Strap
6. Best Sporty — Grey Pilot CTS Rubber Strap
Function first, style a close second. This water-resistant pick balances both.
The Grey Pilot 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.
The Marathon TSAR 36mm's 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.
Alternatives in the same family:
7. The Wildcard — Jean Grey Babele Slim Strap
Every rotation needs a curveball. This is mine.
The Jean Grey Babele 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.
What makes this pairing work on the Marathon TSAR 36mm is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a case, the proportions stay balanced.
Once you see it on the wrist, it just clicks.
The range goes deeper if you want to explore:
- Natural Babele Slim Strap
- Mocha Babele Slim Strap
- Moss Green Babele Slim Strap
- Denim Babele Slim Strap
A Note on Buckle Colour
Quick but important: always match your buckle to your case. The Marathon TSAR 36mm'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 Marathon TSAR 36mm
Swapping straps on the Marathon TSAR 36mm is one of the easiest upgrades you can make — and with Delugs straps, you don't even need a tool.
If your Marathon TSAR 36mm 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 Marathon TSAR 36mm uses a standard 18mm lug width, and all Delugs straps in 18mm will fit perfectly.
Frequently Asked Questions
What is the lug width of the Marathon MARATHON TSAR 36MM?
The Marathon MARATHON TSAR 36MM has a 18mm lug width. While 18mm is less common than 20mm, there is still a strong selection of quality straps available. All Delugs straps are available in 18mm.
What is the reference number for the Marathon TSAR 36mm?
The reference number for the Marathon TSAR 36mm is MARATHON TSAR 36MM. 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 Marathon versatile watch?
The TSAR 36mm is one of the most versatile watches in the Marathon 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 Marathon TSAR 36mm?
The TSAR 36mm'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 Marathon use quick-release spring bars?
Most Marathon 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 Marathon MARATHON TSAR 36MM?
The Marathon Strap Finder shows every Delugs strap compatible with the MARATHON TSAR 36MM, 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 Marathon TSAR 36mm 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 Marathon TSAR 36mm 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 Marathon Strap Finder lets you browse the full lineup and find your match.
Not sure which strap is right for your specific TSAR 36mm? 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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