The GA2100 Royal Oak Style build transforms Casio’s affordable “Casioak” into a stunning homage to the iconic Audemars Piguet Royal Oak. With the right bezel, dial, and strap choices, you can achieve a luxury watch aesthetic for under $150 total. This guide shows you exactly how to create your own Royal Oak-inspired GA2100.
🖼️ IMAGE NEEDED: Hero Image – GA2100 Royal Oak Style Builds
[PLEASE UPLOAD: Multiple Royal Oak style GA2100 builds]
Recommended: 3-4 different Royal Oak inspired builds side by side
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The Royal Oak Connection
The GA2100’s octagonal bezel design was directly inspired by the Audemars Piguet Royal Oak, designed by Gerald Genta in 1972. This makes the GA2100 the perfect canvas for creating a Royal Oak homage:
- Octagonal Bezel – Both share this iconic shape
- Integrated Bracelet – Similar design language
- Exposed Screws – Signature Royal Oak detail
- Thin Profile – Both are relatively slim
Real Royal Oak vs GA2100 Royal Oak Build
| Feature | Audemars Piguet Royal Oak | GA2100 Royal Oak Build |
|---|---|---|
| Price | $30,000-300,000+ | $80-150 total |
| Movement | Automatic Swiss | Quartz Japanese |
| Case Material | Steel/Gold/Platinum | Resin + Metal Bezel |
| Water Resistance | 50m | 200m |
| Service Cost | $500-2000 | $0-50 |
| Daily Wear | Careful | Beat it up |
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How to Build a Royal Oak Style GA2100
Option 1: Quick & Easy (Budget Build)
The simplest way to get the Royal Oak look:
- Bezel: Silver or brushed metal bezel with hex screws ($25-40)
- Strap: Silver stainless steel bracelet ($20-35)
- Dial: Keep stock or add blue dial overlay ($15-25)
- Total: $60-100 in parts
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Option 2: Premium Build
For a more convincing Royal Oak look:
- Bezel: Premium metal bezel with correct screw placement ($40-70)
- Dial: “Grande Tapisserie” pattern dial ($25-40)
- Strap: High-quality stainless steel bracelet ($30-50)
- Hands: Royal Oak style baton hands ($15-25)
- Total: $110-185 in parts
🖼️ IMAGE NEEDED: Premium Royal Oak build
Option 3: Two-Tone Build
Channel the iconic two-tone Royal Oak look:
- Bezel: Gold or rose gold IP bezel ($40-60)
- Dial: Champagne or silver dial ($20-35)
- Strap: Two-tone bracelet (gold/steel) ($35-55)
- Total: $95-150 in parts
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Essential Parts for Royal Oak Style
Bezel Options
| Bezel Type | Material | Price | Royal Oak Accuracy |
|---|---|---|---|
| Brushed Steel | Aluminum/Steel | $25-40 | ⭐⭐⭐ |
| Polished Steel | Steel | $30-50 | ⭐⭐⭐⭐ |
| Gold IP | Plated Steel | $40-60 | ⭐⭐⭐⭐ |
| Rose Gold IP | Plated Steel | $45-65 | ⭐⭐⭐⭐ |
| Ceramic | Ceramic | $60-100 | ⭐⭐⭐⭐⭐ |
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Dial Options
- Stock Dial – Works, but not Royal Oak accurate
- Blue Dial Overlay – Classic Royal Oak color
- “Grande Tapisserie” Pattern – Most accurate look
- Champagne Dial – For gold builds
- White/Silver Dial – Clean, dressy option
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Strap Options
- Stainless Steel Bracelet – Most authentic Royal Oak look
- Engineer Bracelet – Similar integrated style
- Leather Strap – Dress alternative
- Rubber Strap – Sporty Royal Oak Offshore vibe
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Step-by-Step: Royal Oak Build Tutorial
Step 1: Start with the Right Base
Best GA2100 models for Royal Oak builds:
- GA2100-4A – Blue accents (matches Royal Oak blue)
- GA2100-1A – Black, good for stealth Royal Oak
- GA2100-7A – White/silver, dressy option
🖼️ IMAGE NEEDED: GA2100 base models for Royal Oak build
Step 2: Install Royal Oak Style Bezel
Remove the stock bezel and install your metal bezel:
- Follow our bezel installation guide
- Make sure bezel screws align properly
- Hex screws should be at correct positions
🖼️ IMAGE NEEDED: Installing Royal Oak bezel
Step 3: Add the Dial (Optional)
For the most accurate look, install a patterned dial:
- Carefully open the watch case
- Replace the dial face
- Reassemble with proper sealing
⚠️ This requires watchmaking skills and may affect water resistance.
Step 4: Install the Bracelet
A steel bracelet is essential for the Royal Oak look:
- 22mm width required
- Look for integrated style that matches the case
- Brushed or polished finish to match bezel
🖼️ IMAGE NEEDED: Installing steel bracelet on GA2100
Step 5: Final Result
Your GA2100 Royal Oak build is complete!
🖼️ IMAGE NEEDED: Completed Royal Oak style GA2100
Where to Buy Royal Oak Parts
Recommended Vendors
- AliExpress – Search “GA2100 Royal Oak bezel” – Best prices
- eBay – “Casioak metal bezel” – Good selection
- Suppli Watches – Premium custom parts
- Tokyo Straps – Quality bracelets
What to Look For
- Correct Screw Placement – 8 screws in Royal Oak positions
- Quality Finish – No rough edges or casting marks
- Proper Fit – Should snap on securely
- Good Photos – See actual product, not render
Royal Oak Style Gallery
🖼️ IMAGE NEEDED: Gallery of 5-6 Royal Oak style GA2100 builds
Recommended: Show blue dial, steel, gold, rose gold, and two-tone variations
Tips for the Best Royal Oak Build
- Match Your Metals – Bezel, bracelet, and dial should coordinate
- Blue is Classic – The most iconic Royal Oak color
- Brushed Finish – More authentic than polished
- Thin Profile – Royal Oak is known for being slim
- Quality Bracelet – Makes or breaks the look
- Don’t Over-polish – Brushed steel is more accurate
Frequently Asked Questions
Is this legal?
Creating a Royal Oak-inspired watch is legal for personal use. Just don’t try to sell it as a real Audemars Piguet or use their trademark.
Will people think it’s a real Royal Oak?
From across a room, maybe. Up close, the difference is obvious. But that’s not the point – it’s about enjoying the design aesthetic at an affordable price.
What’s the best color for Royal Oak style?
Blue is the most iconic and recognizable Royal Oak color. Steel with blue dial is the classic combination.
Conclusion
The GA2100 Royal Oak style build is one of the most satisfying customization projects in the G-Shock world. For under $150, you can create a watch that captures the spirit of one of horology’s greatest designs. Whether you go for the classic blue steel look or a luxurious gold build, your Royal Oak GA2100 will turn heads without emptying your wallet.
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Last updated: March 2026