Standard Quick Release Spring Bars (Pair)
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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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Standard Quick-Release Spring Bars
The reliable, everyday choice for your watch collection. If you're looking to upgrade your strap game with tool-free swapping, our Standard Quick-Release Spring Bars are exactly what you need.
Designed to be the universal go-to, these bars are built to slip effortlessly into almost any modern or vintage watch. The built-in quick-release lever means you can change your look on the fly, no spring bar tool required, and no scratched lugs. Just slide the lever, pop the strap in, and you're good to go.
Specifications
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The Body (1.4mm): Slim enough to slide smoothly into almost any watch strap on the market while maintaining plenty of strength for daily wear.
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The Tip (0.7mm): The industry standard size, precision-machined to snap securely into the vast majority of watch lugs without any hassle.
Watch Compatibility
These are the perfect fit for most watches. The 0.7mm tip is the universal standard, making these incredibly versatile.
What they are for:
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Standard everyday wearers, dress watches, chronographs, and field watches.
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Vintage pieces with traditional, narrower lug holes.
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Virtually any watch that doesn't explicitly call for an oversized or specialty spring bar.
What they are NOT for:
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Heavy-duty dive watches with oversized lug holes (such as Seiko SKX, Turtle, or Tuna models). If you put a 0.7mm tip into an oversized 1.0mm lug hole, the bar will rattle, sit loosely, and could potentially fail. If you have a dive watch with drilled or oversized lugs, you'll want to grab our Skinny Fat spring bars instead!
Available in 18mm, 19mm, 20mm, 21mm, 22mm, and 24mm sizes.