





Rugged Sport Band for Catalyst Apple Watch Case | Large
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The ultimate security upgrade for your waterproof Catalyst case. Featuring a classic stainless steel buckle for a traditional, rock-solid fit, this band is engineered for durability and all-day comfort. Perfect for any adventure, from the trail, gym to the office, combining style and functionality.
Engineered for Adventure
Don't just protect your Apple Watch—enhance it. Our Rugged Sport Band is designed to integrate seamlessly with your Catalyst case, providing a secure and stylish carrying solution that never quits.
- Maximum Security Buckle: A classic, high-grade stainless steel buckle ensures your watch stays put, no matter the activity.
- All-Day Comfort: Made from soft, hypoallergenic silicone that is breathable, waterproof, and sweat-proof.
- Durable by Design: Built to withstand the elements, this band is as tough as your Catalyst case.
Universal Fit — Any Watch With 24 mm Lugs
This is a universal quick-release watch band. It fits any watch with 24 mm wide lugs, and it fits Catalyst waterproof cases for the large Apple Watch sizes listed below. It does not attach directly to an Apple Watch, which uses its own connector.
Specifications
- Lug width: 24 mm
- Spring bars: quick-release, 1.8 mm diameter (fitted)
- Fits wrists: 140–215 mm (5.5–8.4 in), measured around the wrist
- Strap pieces: long piece 115 mm, short piece 75 mm, 24 mm wide
- Closure: stainless steel pin buckle with keeper loop
- Material: soft hypoallergenic silicone, waterproof and sweat-proof
How to Check Your Fit in 3 Steps
- Measure the lug width. Take off your current band and measure the gap between the two lugs (the small horns that hold the band) with a ruler, in millimetres. A 24 mm gap takes this band. If your gap is 22 mm, choose our 22 mm band instead.
- Check the spring bar. This band comes fitted with 1.8 mm quick-release spring bars, so no tools are needed: slide the small lever on the back of the band to fit or remove it.
- Measure your wrist. Wrap a tape measure — or a strip of paper you then lay against a ruler — snugly around your wrist where you wear your watch. The measurement should fall between 140 and 215 mm (5.5 and 8.4 in).
Need more detail? Read our complete guide to measuring lug width, spring bars and wrist size.
Also Fits Catalyst Apple Watch Cases
The "Large" size fits Catalyst waterproof cases for:
- Apple Watch Series 9, 8, 7 (45mm)
- Apple Watch Series 6, 5, 4 & SE (44mm)
- Apple Watch Series 3, 2, 1, 0 (42mm)
Note: the band attaches to the Catalyst case's 24 mm lugs, not directly to the Apple Watch.
Trusted by thousands of users
Conquer any trail with confidence! ⛰️ The Catalyst Impact Protection Case keeps your Apple Watch safe from drops up to 9.9ft, so you can focus on your adventure. Lightweight, rugged, and ready for anything. Where will you take yours?
Who says you can't have both? 😎 The Catalyst Impact Protection Case delivers military-grade protection in a slim, stylish package. Safeguard your Apple Watch from everyday bumps and scratches without sacrificing looks.
Oops! 😅 Accidents happen, but with the Catalyst Impact Protection Case, your Apple Watch is ready. Military-grade drop protection up to 9.9ft means peace of mind, no matter what life throws at you.
Real Customers, Proven Protection
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Specification

12.00cm x 2.50cm x 0.90cm (4.72” x 0.98” x 0.35”)
- Lug width: 24 mm
- Spring bars: quick-release, 1.8 mm diameter (fitted)
- Fits wrists: 140–215 mm (5.5–8.4 in), measured around the wrist
- Strap pieces: long piece 115 mm, short piece 75 mm, 24 mm wide
- Closure: stainless steel pin buckle with keeper loop
- Material: soft hypoallergenic silicone, waterproof and sweat-proof
Compatibility

- Fits any watch with 24 mm wide lugs (quick-release spring bars, 1.8 mm)
- Fits wrists 140–215 mm (5.5–8.4 in)
- Compatible with Catalyst Case for 45mm - Apple Watch Series 9, Series 8, Series 7
- Compatible with Catalyst Case for 44mm - Apple Watch Series 6, Series 5, Series 4, Apple Watch SE (Gen 3/2/1)
- Compatible with Catalyst Case for 42mm - Apple Watch Series 3, Series 2, Series 1, Apple Watch (Gen 1)
- Not compatible with Catalyst Case for 41mm - Apple Watch Series 9, Series 8, Series 7
- Not compatible with Catalyst Case for 40mm - Apple Watch Series 6, Series 5, Series 4, Apple Watch SE (Gen 3), Apple Watch SE (Gen 3/2/1)
- Not compatible with Catalyst Case for 38mm - Apple Watch Series 3, Series 2, Series 1, Apple Watch (Gen 1)
- Not compatible with Apple Watch Ultra (all generations)
- Not compatible with Apple Watch Series 11, Series 10
Learn how to Identify your Apple Watch model
Features

- Fits Catalyst Apple Watch Cases
- Quick-release spring bar
- Easy to install
- Breathable Strap
- Hypoallergenic silicone material
- Lightweight
- Universal fit — any watch with 24 mm lugs
What is in the box?

- Sport Band x1
Support
Support information not available.

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