Neo Tropical Rubber - Black
Finding the perfect strap or accessory for your watch can greatly enhance comfort and style. Our sizing guides help you measure your watch accurately, ensuring the best fit. Whether you have a traditional watch or an Apple Watch, we provide step-by-step instructions to determine the ideal strap size and watch lug width. With these guides, you can confidently choose the perfect straps and accessories to enhance your watch.
• Traditional Watch Instructions:
1) Open Our Sizing Guide Here. Download Here
2) Print File. In print options dialogue box, uncheck any “shrink oversized pages to fit” or “fit to page” boxes. *IMPORTANT!*
3) After printing, test the accuracy by measuring the “one inch” test strip with a standard ruler.
4) Cut off the inch ruler from the side and wrap around your wrist to determine your wrist size.
5) Hold your watch with the lugs framing the blocks below to determine your lug width. There should be no gap or overlap.
Lug Width Measurement:
To determine your lug width, print the BluShark Watch Sizing Guide in step-1 and place your watch on the measuring blocks located on the bottom of the guide.
• Apple Watch Instructions
1) Open Our Apple Watch Sizing Guide Here. Download Here
2) Print File. In print options dialogue box, uncheck any “shrink oversized pages to fit” or “fit to page” boxes. *IMPORTANT!*

3) Cut out the tool. Position the wider end where you would wear a watch. For a more accurate measurement, you can use a piece of tape to hold the wider end in place.

4) Wrap the tool around your wrist, keeping it in place. Make sure the tool feels snug and doesn’t slide up or down.

5) Note the inch number the arrows point to – that’s your band size.

6) If the arrows land between two measurements, choose the smaller of the two numbers closest to the line.
Adapter Measurement:
To determine which size adapter you need, use the following guide:
If your Apple Watch is 42mm, 44mm, or 45mm, you’ll need an adapter that measures 22mm.
If your Apple Watch is 38mm or 40mm, you’ll need an adapter that measures 20mm.
If you have a 41mm Apple Watch, choose the 20mm adapter.
- Includes 2 strap lengths for a custom fit.
- FKM Rubber
- Quik Release Spring Bars
Unsure of your case size? You can usually find it on the back of your Apple Watch, near the sensor. Or, open the Apple Watch app on your iPhone, go to "My Watch" at the bottom, then tap General > About.
Not sure of your wrist size? Check our wrist size guide!
| Watch Model | Case Size | Order This Strap Size |
|---|---|---|
| Apple Watch (1st Gen) | 38mm | Small Strap |
| Apple Watch (1st Gen) | 42mm | Large Strap |
| Apple Watch Series 1 | 38mm | Small Strap |
| Apple Watch Series 1 | 42mm | Large Strap |
| Apple Watch Series 2 | 38mm | Small Strap |
| Apple Watch Series 2 | 42mm | Large Strap |
| Apple Watch Series 3 | 38mm | Small Strap |
| Apple Watch Series 3 | 42mm | Large Strap |
| Apple Watch Series 4 | 40mm | Small Strap |
| Apple Watch Series 4 | 44mm | Large Strap |
| Apple Watch Series 5 | 40mm | Small Strap |
| Apple Watch Series 5 | 44mm | Large Strap |
| Apple Watch Series 6 | 40mm | Small Strap |
| Apple Watch Series 6 | 44mm | Large Strap |
| Apple Watch SE (1st Gen) | 40mm | Small Strap |
| Apple Watch SE (1st Gen) | 44mm | Large Strap |
| Apple Watch Series 7 | 41mm | Small Strap |
| Apple Watch Series 7 | 45mm | Large Strap |
| Apple Watch Series 8 | 41mm | Small Strap |
| Apple Watch Series 8 | 45mm | Large Strap |
| Apple Watch SE (2nd Gen) | 40mm | Small Strap |
| Apple Watch SE (2nd Gen) | 44mm | Large Strap |
| Apple Watch Series 9 | 41mm | Small Strap |
| Apple Watch Series 9 | 45mm | Large Strap |
| Apple Watch Series 10 | 42mm | Small Strap |
| Apple Watch Series 10 | 46mm | Large Strap |
| Apple Watch Series 11 | 42mm | Small Strap |
| Apple Watch Series 11 | 46mm | Large Strap |
| Apple Watch Series SE 3 | 40mm | Small Strap |
| Apple Watch Series SE 3 | 44mm | Large Strap |
| Apple Watch Ultra | 49mm | Ultra Strap |
| Apple Watch Ultra 2 | 49mm | Ultra Strap |
| Apple Watch Ultra 3 | 49mm | Ultra Strap |
- In stock, ready to ship
- Backordered, shipping soon
The Classic Tropical Style, Reborn - Now with Two Lengths for a Customizable Fit!
Introducing the Neo Tropical Rubber Strap by BluShark Straps. Featuring a sleek buckle, a flexible feel, and two sliding keepers that match the strap’s design, this strap is a modern take on our classic Tropical Style. The Neo Tropical enhances its predecessor with deeper, diagonal crisscross etching and slightly jagged edges, creating a stronger, more rugged look. It comes with two lengths for a customizable fit—try each to find the one that fits you best.
Made from premium FKM rubber, the Neo Tropical Strap is highly durable, water-resistant, and resistant to heat, UV rays, and sweat, ,making it ideal for active lifestyles and daily wear. Its flexible yet strong construction ensures comfort on long dives or during outdoor adventures. Perfect for dive watches, it also pairs seamlessly with sport chronographs, field watches, pilot watches, and casual everyday watches, giving each timepiece a rugged, modern edge while maintaining a comfortable fit for all-day wear.
- FKM Rubber for long lasting performance.
- Premium stainless steel buckle in either Brushed or PVD Black
- Two Sliding Keepers
Two Strap Lengths Included! This unique feature allows you to try on both sizes and select the one that perfectly complements your wrist, ensuring an ideal fit every time.
Sizing Details:
- Buckle Side: 78mm
- Tail Side: 105mm & 127mm (both lengths included!)
- 120mm: Fits wrists from 5.5" to 7"
- 140mm: Fits wrists from 6.5" to 8.5"
Fit Details: The Neo Tropical Rubber Strap, with its two tail lengths, provides a highly customizable fit, especially thanks to the extended adjustment holes that run nearly the full length of the tail. The underside of the strap features a subtle crisscross pattern with wider, smoother edges, improving airflow and offering a more comfortable feel on the wrist. It fits wrists up to approximately 8.5", leaving enough tail to tuck neatly under both keepers.