Premium Rubber Watch Band for Seiko Fast Release Soft Universal Flat-end 20MM 22MM Rubber Strap Replacement for 7.3inch Wrist
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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.
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 |
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SPECIFICATIONS
Band Material Type: Rubber
Brand Name: NONE
Choice: yes
Clasp Type: Pin Buckle
Compatible Brand: Traditional Watch
Condition: New without tags
High-concerned chemical: None
Item Type: Watchbands
Origin: Mainland China
1.Premium Material: This strap is made of Premium Rubber, that has a high density and is designed to withstand hard circumstances such as high temperatures. Soft and flexible, it is luxurious to wear and does not hurt the skin.
2.Distinctive Design: Fast release design, easy to install, which swap straps in seconds with the pull of a lever on the integrated fast release spring bars and no tools required. In addition, the two fixing loops are designed with a groove to hold it in place and do not slide easily.
3.Excellent Wearing: This soft rubber strap is not only waterproof and sweat-proof, but also does not absorb dust and has high breathability, effectively keeping the wrist dry and comfortable to wear. This is without a doubt one of the best rubber watch strap replacements for dive or sports watches.
4.Better Strap Match: The straps are available in 20mm and 22mm widths to fit most watches and a variety of dials that best match your watch, dive gear or clothing of choice. Whether you're doing an intense workout at the gym or at a formal meeting or function, this is a strap that fits right in alongside your premium wristwatch.
5.Versatile Applicability: The unisex strap is designed with 10 adjustment holes and total length of the band (not including your watch) is 8.27". The smallest size is 4.5" and the largest is 7.8", they are perfect strap for outdoor use, swimming, and other sporting activities.
Specification:
Watchband Material: Premium Rubber
Buckle Material: Stainless Steel
Watchband Color: Black
Buckle color: Silver
Width size: 20mm 22mm
Watchband Length: 85mm+125m
Thickness: 2-4mm
Packing List:
Fast Release Watch Strap x 1
Spring Bars x 2 




Let customers speak for us
from 629 reviewsThe strap is wonderful quality along with the deployment clasp. Another plus is the size. It's hard to find straps that would fit an 8inch wrist. I am so satisfied I ordered 3!
Very pretty watchstrap, well-made, and durable. Expect many years of you out of this watch strap. Thank you, aliexpress.
Great watch strap the description says gray metal. Looks almost charcoal. Wish it was silver. The strap is well-made well constructed and works well with this i watch.
Excellent and fits well. Already bought more. I like the fit and quality
Looks great and it works perfectly. Feels very durable. It should last a long time
It arrived exactly matching the color I loved!!
Came as expected, as pictured. Exact replica to a very well known company. 10/10 recommend
Good silicone straps. High quality and excellent for their price! Thank you to the seller!