San Martin SN004-G · Ref. THE SAN MARTIN SN004 G 2025 · 17mm lug
At a Glance
| # | Best For | Strap | Material | Thickness |
|---|---|---|---|---|
| 1 | Overall / First Purchase | Orange Epsom Slim Strap | Epsom Calfskin | 2.2mm |
| 2 | Dressy / Formal | Matte Orange Alligator Signature Strap | Alligator | 4.5–2.2mm |
| 3 | Everyday / Casual | Navy Nubuck Slim Strap | Nubuck Calfskin | 2.2mm |
| 4 | Minimalist / Refined | Black Shell Cordovan Slim Strap | Shell Cordovan | 2.2mm |
| 5 | Casual / Relaxed | Black Crazy Horse Side-Stitch Strap | Waxy Leather | 2.5mm |
| 6 | Active / Sporty | Dark Grey Alcantara Signature Strap | Alcantara | 4.5–2.2mm |
| 7 | Comfort / Wildcard | Mocha Crazy Horse Side-Stitch Strap | Waxy Leather | 2.5mm |
San has a way of surprising you with how much watch you get. The Martin SN004-G (ref. THE SAN MARTIN SN004 G 2025) is a case in point. The finishing and attention to detail speak for themselves. A 17mm lug width and that unmistakable character make this watch a natural platform for strap changes.
At across and thick, the Martin SN004-G 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 | 17mm |
| Lug-to-lug | |
| Case thickness | |
| Water resistance | |
| Crystal | |
| Case material | |
| Movement |
The 17mm lug width means your options are curated but well-covered. Already know what you're looking for? Browse all San Martin SN004-G-compatible straps on the Strap Finder →
1. Best Overall — Orange Epsom Slim Strap
Every watch needs a go-to strap, and for the San Martin SN004-G, this is it.
The Orange Epsom Slim Strap features Epsom leather, tanned by Haas. The fine, uniform grain gives it a clean, contemporary look that resists scratches and moisture with ease. This is leather that looks as sharp six months from now as it does on day one. At 2.2mm thick, it balances presence and wearability nicely.
Paired with the San Martin SN004-G'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.
Once you see it on the wrist, it just clicks.
The range goes deeper if you want to explore:
- Black Epsom Slim Strap
- Tinware Grey Epsom Slim Strap
- Hunter Green Epsom Slim Strap
- Izmir Blue Epsom Slim Strap
2. Best Dressy — Matte Orange Alligator Signature Strap
When you need to dress the San Martin SN004-G up, this is the strap that delivers.
The Matte Orange 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.
On the San Martin SN004-G, this strap preserves the watch's go-anywhere character. The case at thick pairs naturally with the padded construction without creating any imbalance on the wrist.
It's the kind of pairing that makes you wonder why you didn't try it sooner.
Other colours worth considering:
- Matte Black Alligator Signature Strap
- Matte Navy Alligator Signature Strap
- Matte Himalayan Alligator Signature Strap
- Matte Mahogany Alligator Signature Strap
3. Best Everyday — Navy Nubuck Slim Strap
The strap you reach for without thinking — that's what an everyday pick should be.
The Navy Nubuck Slim Strap is crafted from nubuck leather — soft, velvety to the touch, and comfortable from the first wear. No break-in period needed. The suede-like texture adds a casual warmth that takes the edge off a formal watch without losing sophistication. At 2.2mm thick, it balances presence and wearability nicely.
What makes this pairing work on the San Martin SN004-G 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 Nubuck Slim Strap
- Light Grey Nubuck Slim Strap
- Dark Brown Nubuck Slim Strap
- Pastel Blue Nubuck 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 San Martin SN004-G'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.
A combination that's greater than the sum of its parts.
Worth a look in other colourways:
- Navy Shell Cordovan Slim Strap
- Cognac Shell Cordovan Slim Strap
- Natural Shell Cordovan Slim Strap
- Green Shell Cordovan Slim Strap
5. Best Casual — Black Crazy Horse Side-Stitch Strap
Weekend straps should feel effortless. This one nails that.
The Black 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.
The San Martin SN004-G'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.
6. Best Sporty — Dark Grey Alcantara Signature Strap
A sportier option that brings comfort and durability without sacrificing style.
The Dark Grey Alcantara Signature Strap is crafted from Alcantara — the same Italian material used in luxury car interiors and high-end sportswear. It has a suede-like softness that is immediately comfortable, with a luxurious hand feel that belies its toughness. At 4.5–2.2mm thick, it balances presence and wearability nicely.
What makes this pairing work on the San Martin SN004-G is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a case, the proportions stay balanced.
It's the kind of pairing that makes you wonder why you didn't try it sooner.
Other colours worth considering:
- Baby Blue Alcantara Signature Strap
- Brown Alcantara Signature "Teddy Bear" Strap
- Dark Brown Alcantara Signature Strap
- Green Alcantara Signature Strap
7. The Wildcard — Mocha Crazy Horse Side-Stitch Strap
Every rotation needs a curveball. This is mine.
The Mocha 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.
What makes this pairing work on the San Martin SN004-G 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.
A Note on Buckle Colour
Quick but important: always match your buckle to your case. The San Martin SN004-G'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 San Martin SN004-G
Swapping straps on the San Martin SN004-G is one of the easiest upgrades you can make — and with Delugs straps, you don't even need a tool.
If your San Martin SN004-G 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 San Martin SN004-G uses a standard 17mm lug width, and all Delugs straps in 17mm will fit perfectly.
Frequently Asked Questions
What is the lug width of the San THE SAN MARTIN SN004 G 2025?
The San THE SAN MARTIN SN004 G 2025 has a 17mm lug width. While 17mm is less common than 20mm, there is still a strong selection of quality straps available. All Delugs straps are available in 17mm.
What is the reference number for the San Martin SN004-G?
The reference number for the San Martin SN004-G is THE SAN MARTIN SN004 G 2025. 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 San versatile watch?
The Martin SN004-G is one of the most versatile watches in the San 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 San Martin SN004-G?
The Martin SN004-G'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 San use quick-release spring bars?
Most San 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 San THE SAN MARTIN SN004 G 2025?
The San Strap Finder shows every Delugs strap compatible with the THE SAN MARTIN SN004 G 2025, 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 San Martin SN004-G 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 San Martin SN004-G 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 San Strap Finder lets you browse the full lineup and find your match.
Not sure which strap is right for your specific Martin SN004-G? 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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