Rolex Deepsea · Ref. ROLEX DEEPSEA · 21mm lug · 44 mm case
At a Glance
| # | Best For | Strap | Material | Thickness |
|---|---|---|---|---|
| 1 | Overall / First Purchase | Izmir Blue Epsom Slim Strap | Epsom Calfskin | 2.2mm |
| 2 | Dressy / Formal | Glossy Saffron Crocodile Signature Strap | Crocodile | 4.5–2.2mm |
| 3 | Everyday / Casual | Chestnut Buttero Slim Strap | Buttero Calfskin | 2.2mm |
| 4 | Minimalist / Refined | Cognac Shell Cordovan Slim Strap | Shell Cordovan | 2.2mm |
| 5 | Casual / Relaxed | Green Crazy Horse Side-Stitch Strap | Waxy Leather | 2.5mm |
| 6 | Active / Sporty | Grey Tropical CTS Rubber Strap | FKM Rubber (Tropical) | 4.0–3.3mm |
| 7 | Comfort / Wildcard | Dark Grey Alcantara Signature Strap | Alcantara | 4.5–2.2mm |
The Rolex Deepsea (ref. ROLEX DEEPSEA) is one of those watches that makes you stop and look — and then look again. The finishing and attention to detail speak for themselves. At 21mm lug width, it is an incredibly versatile canvas for strap changes.
The 44 mm case with its 17.7 mm profile gives you just enough wrist presence to anchor different strap materials without the watch disappearing. Here are my 7 picks — and why each one works.
Quick Specs
| Case diameter | 44 mm |
| Lug width | 21mm |
| Lug-to-lug | 51 mm |
| Case thickness | 17.7 mm |
| Water resistance | 3,900 m / 12,800 ft |
| Crystal | Sapphire (5.5mm thick, AR-coated) |
| Case material | |
| Movement | Rolex Cal. 3235 (automatic, 70-hour power reserve) |
The 21mm lug width means your options are curated but well-covered. Already know what you're looking for? Browse all Rolex Deepsea-compatible straps on the Strap Finder →
1. Best Overall — Izmir Blue Epsom Slim Strap
Every watch needs a go-to strap, and for the Rolex Deepsea, this is it.
The Izmir Blue 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 Rolex Deepsea's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The 17.7 mm 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:
- Black Epsom Slim Strap
- Tinware Grey Epsom Slim Strap
- Hunter Green Epsom Slim Strap
- Orange Epsom Slim Strap
2. Best Dressy — Glossy Saffron Crocodile Signature Strap
The Rolex Deepsea cleans up remarkably well — and this strap is the reason.
The Glossy Saffron 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.
What makes this pairing work on the Rolex Deepsea is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 44 mm case, the proportions stay balanced.
The range goes deeper if you want to explore:
- 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 — Chestnut Buttero Slim Strap
Your daily strap should feel invisible on the wrist. This one gets close.
The Chestnut 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.
The Rolex Deepsea's 44 mm 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:
- Brown Buttero Slim Strap
- Taupe Buttero Slim Strap
- Natural Buttero Slim Strap
- Green Buttero Slim Strap
4. Best Minimalist — Cognac Shell Cordovan Slim Strap
Clean lines and no visual clutter — that's the appeal here.
The Cognac 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.
What makes this pairing work on the Rolex Deepsea is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 44 mm case, the proportions stay balanced.
The range goes deeper if you want to explore:
- Black Shell Cordovan Slim Strap
- Navy Shell Cordovan Slim Strap
- Natural Shell Cordovan Slim Strap
- Green Shell Cordovan Slim Strap
5. Best Casual — Green Crazy Horse Side-Stitch Strap
Not every strap needs to make a statement. Sometimes relaxed is the right move.
The Green 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 Rolex Deepsea is the contrast — the refined case finishing against the texture creates visual interest without conflict. With a 44 mm case, the proportions stay balanced.
Other colours worth considering:
- Black Crazy Horse Side-Stitch Strap
- Mocha Crazy Horse Side-Stitch Strap
- Tan Crazy Horse Side-Stitch Strap
- Cognac Crazy Horse Side-Stitch Strap
6. Best Sporty — Grey Tropical CTS Rubber Strap
Not every sporty strap needs to be water-resistant — sometimes it is about the texture and attitude.
The Grey Tropical 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.
Paired with the Rolex Deepsea's distinctive dial, this strap adds a layer of personality that the factory option does not offer. The 17.7 mm case thickness means a padded strap like this one feels proportional and substantial.
The range goes deeper if you want to explore:
7. The Wildcard — Dark Grey Alcantara Signature Strap
Think of this as the strap you didn't know you needed.
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.
The Rolex Deepsea's 44 mm 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:
- Baby Blue Alcantara Signature Strap
- Brown Alcantara Signature "Teddy Bear" Strap
- Dark Brown Alcantara Signature Strap
- Green Alcantara Signature Strap
A Note on Buckle Colour
Quick but important: always match your buckle to your case. The Rolex Deepsea'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 Rolex Deepsea
Swapping straps on the Rolex Deepsea is one of the easiest upgrades you can make — and with Delugs straps, you don't even need a tool.
If your Rolex Deepsea 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 Rolex Deepsea 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 Rolex ROLEX DEEPSEA?
The Rolex ROLEX DEEPSEA 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 Rolex Deepsea?
The reference number for the Rolex Deepsea is ROLEX DEEPSEA. 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 Rolex versatile watch?
The Deepsea is one of the most versatile watches in the Rolex 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 Rolex Deepsea?
The Deepsea'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 Rolex use quick-release spring bars?
Most Rolex 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 Rolex ROLEX DEEPSEA?
The Rolex Strap Finder shows every Delugs strap compatible with the ROLEX DEEPSEA, 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 Rolex Deepsea 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 Rolex Deepsea 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 Rolex Strap Finder lets you browse the full lineup and find your match.
Not sure which strap is right for your specific Deepsea? 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
![Anthracite Hook Strap [kollokium x Delugs] - Image 2](http://delugs.com/cdn/shop/files/20250919-A7405309_298x298_crop_center.jpg?v=1761299094)
![Delugs Anthracite Hook Strap [kollokium x Delugs] Fabric Watch Strap](http://delugs.com/cdn/shop/files/Kollokium_straps_Anthracite_1_298x298_crop_center.jpg?v=1761299094)
Buy One, Get One 15% Off
