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Premium Watch Cases &
Luxury Modification Kits

High-quality Apple Watch and Casio G-Shock cases, stainless steel modification kits, and premium accessories — engineered for durability, style, and precision. OEM/ODM services available.

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64+ Apple Watch Cases

Silicone, carbon fiber, aluminum, and shockproof designs for all series.

85+ Casio Watch Cases

Custom metal cases, GA-2100 mods, 316L stainless steel upgrades.

OEM/ODM Services

ISO-certified manufacturing with full customization support.

Crafting Precision Since Day One

opiqiu.com is a trusted manufacturer of premium watch cases and modification kits based in China. Specializing in Apple Watch and Casio G-Shock accessories, we deliver high-performance, stylish, and durable solutions for watch enthusiasts and distributors worldwide.

With ISO certification and rigorous quality control, every product is engineered for perfection — from scratch-resistant carbon fiber covers to luxury 316L stainless steel GA-2100 modification kits.

ISO-Certified Manufacturing
OEM & ODM Customization Available
Global Shipping & Support
Factory Production Quality Control GA2100 Mod Kit Stainless Steel Bezel

Featured Products

Discover our premium collection of Apple Watch cases, Casio G-Shock modification kits, stainless steel bands, and luxury accessories — all designed for performance and elegance.

GA2100 Mod Kit

5th Gen Modified Casio GA2100 Kit

Zinc alloy case, band & screwdrivers — complete mod kit for Casio G-Shock GA-2100.

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Stainless Steel Bezel

Stainless Steel Bezel & Dial Kit

Upgrade your GA-2100 with a luxury 316L stainless steel bezel and dial retrofit.

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Stainless Steel Strap

Stainless Steel Strap for GA2100

Premium 316L stainless steel band — essential accessory for Casio G-Shock mod.

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Apple Watch Carbon Fiber Case

Carbon Fiber Apple Watch Case

Shockproof, heat-resistant carbon fiber case with silicone rubber strap.

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Apple Watch Ultra Cover

Scratch-Resistant Apple Watch Ultra Cover

Snap-on protective cover for Series 6/7 — durable and lightweight.

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Luxury Aluminum Apple Watch Case

Luxury Aluminum Apple Watch Case

Sleek 45mm aluminum case for Apple Watch Series 8 — elegant and protective.

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Frosted Stainless Steel Case

Frosted Stainless Steel Case for GA2100

5th gen frosted finish — elevates the look of your G-Shock with premium texture.

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Custom GA2100 Modification Kit

Custom GA2100 Stainless Steel Case

OEM/ODM offered — fully customizable metal strap and case for G-Shock GA-2100.

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Why Choose opiqiu.com?

We combine precision engineering, premium materials, and global reliability to deliver unmatched value.

ISO Certified

Manufacturing meets international quality and safety standards.

OEM/ODM Support

Full customization from design to packaging — your brand, your rules.

Premium Materials

316L stainless steel, carbon fiber, and high-grade alloys for lasting quality.

Fast Response

Dedicated sales team ready to assist with quotes and technical support.

Frequently Asked Questions

Do you offer OEM/ODM services?

Yes, we provide full OEM and ODM support including custom branding, packaging, and design modifications.

What materials are used in your Casio GA-2100 kits?

We use 316L stainless steel, zinc alloy, and high-quality silicone for durability and luxury finish.

Are your Apple Watch cases compatible with all models?

Our cases are model-specific. Please check product details for compatibility with your Apple Watch series.

How can I request a quote?

Visit opiqiu.com and submit your inquiry through the official contact page.

Get in Touch

Ready to start a project or need more information? Reach out through our official website.

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