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Experience unmatched durability, comfort, and performance with the AeroGuard™ SteelSport Pro Case & Band System, engineered by Avontic for users who demand premium protection and elevated style. This advanced two-piece system combines a precision-machined stainless steel protective case with a reinforced rubber sport band, delivering rugged strength with a refined, athletic look.
Designed for Apple Watch Ultra 3, Ultra 2, Ultra 1, and Series 11/10/9 models, AeroGuard™ enhances both the appearance and the durability of the Apple Watch, transforming it into a bold, adventure-ready timepiece built for impact, training, and daily wear.
Key Features
Stainless Steel Protective Case
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Precision-milled stainless steel housing for superior impact resistance.
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Raised bezel design provides additional screen protection.
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Full-frame coverage helps safeguard against drops, abrasion, and surface wear.
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Easy-access button cutouts maintain seamless functionality.
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Strengthened attachment points ensure a secure, stable fit.
Reinforced Rubber Sport Band
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High-density elastomer engineered for durability, flexibility, and long-term comfort.
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Sweat-resistant, water-resistant, and built for both training and everyday use.
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Stainless steel buckle closure for a secure, reliable fit in any environment.
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Vent-groove design improves airflow and prevents moisture buildup.
Designed for Modern Performance
Whether you’re training outdoors, traveling, or wearing your watch daily, the AeroGuard™ system delivers complete protection with a premium athletic aesthetic. The sleek rubber band and stainless steel case merge into a unified, rugged design that elevates the Apple Watch beyond its standard look.
Model Compatibility
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Apple Watch Ultra 3 / Ultra 2 / Ultra 1 — 49mm
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Apple Watch Series 11 / 10 — 46mm
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Apple Watch Series 9 / 8 / 7 — 45mm
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Apple Watch Series 6 / SE / 5 / 4 — 44mm
Complete Kit Includes
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Stainless steel protective case
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Reinforced rubber sport band
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Stainless steel clasp
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Installation tool (when required)
Why Customers Choose Avontic
Avontic is known for premium materials, precise engineering, and elevated design. Every product is crafted to enhance comfort, protection, and long-term durability—making AeroGuard™ SteelSport Pro one of the strongest, most reliable Apple Watch upgrades available today.
| Model | Case Sizes (Engraved) | Order Band Size | Order Case/Protector |
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| Apple Watch Ultra 3 / Ultra 2 / Ultra (1) | 49 mm | 49 mm (also fits 42/44/45/46 mm) | 49 mm only |
| Series 11 | 42 mm, 46 mm | 42 mm or 46 mm | Match engraving (42 mm or 46 mm) |
| Series 10 | 42 mm, 46 mm | 42 mm or 46 mm | Match engraving (42 mm or 46 mm) |
| Series 9 / 8 / 7 | 41 mm, 45 mm | 41 mm or 45 mm | Match engraving (41 mm or 45 mm) |
| SE (2nd & 1st Gen) | 40 mm, 44 mm | 40 mm or 44 mm | Match engraving (40 mm or 44 mm) |
| Series 6 / 5 / 4 | 40 mm, 44 mm | 40 mm or 44 mm | Match engraving (40 mm or 44 mm) |
| Series 3 / 2 / 1 | 38 mm, 42 mm | 38 mm or 42 mm | Match engraving (38 mm or 42 mm) |
Quick Example:
If your Apple Watch says 41 mm on the back → Order a 41 mm band and 41 mm case.
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