Quick answer: Choose your Casio modification route from the complete watch reference, then follow the model guide and the tutorial for the actual component. GA2100, DW5600, AE1200, F-91W, A158/A159 and MDV Duro are separate platforms. This directory connects their guides, comparisons and buying checklists without treating shared nicknames or strap widths as evidence of compatibility.
Choose a model centre
| Platform | Start here | First decision |
|---|---|---|
| GA2100 / GM2100 | GA2100 & GM2100 Mod Hub: Compatibility, Parts & Tutorials | Check family, conversion type and hardware. |
| DW5600 | DW5600 Mod Hub: Square Reference Fit, Parts & Installation Checks | Identify the square generation before ordering. |
| AE1200 Royale | Casio AE1200 Royale Mod Guide: Fit, Straps, Cases & Display Options | Separate strap, case and optical projects. |
| F-91W | F-91W Mod Guide: Pin Fit, Strap Choices & Display Risks | Identify pin retention and strap clearance. |
| A158 / A159 | Casio A158 & A159 Mod Guide: Bracelet Fit, Finishes & Display Choices | Confirm full finish reference and bracelet connection. |
| MDV Duro | Casio Duro MDV Mod Guide: Model Differences, Straps & Case Work | Distinguish the full-size and smaller MDV references. |
A build-planning sequence
- Photograph the reference and record normal watch operation.
- Choose the model centre, then the guide for the specific part.
- Make a list of required components and request exact-reference fitting information.
- Agree tools, installation, any sealing work and complete cost before purchase.
- Dry-fit external components and check controls, articulation and retention.
- Document the installed parts and any service or test results.
A strap colour change, a replacement housing and a dial alteration require different knowledge and tools. Choose the smallest project that meets your goal and add another change only after the first assembly passes its checks. Keeping original parts makes service and reversal easier.
How to use the evidence in these guides
Manufacturer links describe the original references. Aftermarket parts need their own fitting evidence, material descriptions and installation information. A factory water rating does not certify a modified watch. Style suggestions are editorial ideas unless an actual measured product test is explicitly documented.
The presence of a guide does not mean every discussed component is currently stocked. Check individual product descriptions and contact the supplier with the full reference. A useful enquiry names the watch, the exact part and the missing fit measurement instead of only asking whether a generic nickname is compatible.
GA2100, GA2110 and GM2100
- GA2100 Steel Bracelet Installation: Hardware, Sizing & Checks
- CasiOak Mod Kit Buying Guide: GA2100 Fit & Build Checklist
- GA2100 vs GA2110: Same Size, Styling & Mod-Fit Checks
- GA2100 Dial Replacement Guide: Compatibility & Installation Planning
- GA2100 vs GM2100: Factory Differences & Mod Compatibility
- Metal CasiOak vs Royal Oak: Design, Construction & Identity
- GA2100 Real vs Fake: Reference, Functions & Modification Checks
- 20 CasiOak Mod Ideas: An Editorial Build-Planning Checklist
- GA2100 Strap Guide: Native Fit, Adapters & 22mm Options
- GA2100 Bezel Replacement: Reference Checks & External Fitting Plan
- GA2100 Octagonal Metal Build Guide: Finish, Bracelet & Proportions
- GA2100 Stealth Build Guide: Black Finishes, Contrast & Fit
- GM2100 Mod Guide: Metal-Covered Case, Strap Fit & Part Checks
- GA2100 & GM2100 Mod Hub: Compatibility, Parts & Tutorials
DW5600 square models
AE1200 Royale
- Casio AE1200 Royale Mod Guide: Fit, Straps, Cases & Display Options
- AE1200 Metal Case Installation: Module, Controls & Seal Checklist
F-91W and vintage digital models
- 15 F-91W Mod Ideas: Reversible Style & Display Trade-Offs
- Casio A158 & A159 Mod Guide: Bracelet Fit, Finishes & Display Choices
- F-91W Mod Guide: Pin Fit, Strap Choices & Display Risks
MDV and Duro
- Duro Strap Replacement Guide: MDV Reference, Fit & Material Choices
- Casio Duro MDV Mod Guide: Model Differences, Straps & Case Work
Painted and engraved dials
- Engraved vs Hand-Painted Watch Dials: A Practical Comparison
- Hand-Painted Watch Dial Guide: Design, Process & Commission Checklist
Buying, fitting and service foundations
- Steel Bracelet vs Rubber Strap: Fit, Comfort & Care for Watch Mods
- Budget Watch Mod Planning: Parts, Tools & Complete Build Costs
- About Vickit Watches: Parts, Guides & Build Support
- G-Shock Mod Kit Guide: Types, Inclusions & Compatibility
- Custom G-Shock Dial Buying Guide: Fit, Artwork & Installation
- Choosing a G-Shock for Modification: Reference & Project Comparison
- Watch Modding Tools: External Fitting & Internal Service Checklist
- G-Shock Strap Buying Guide: Direct Fit, Adapters & Materials
- G-Shock Metal Case Buying Guide: Reference Fit & Conversion Checks
- G-Shock Bezel Buying Guide: Fit, Materials, Finish & Evidence
- How to Assess a G-Shock’s Authenticity: Evidence & Buying Checks
- G-Shock Mod Kit Supplier Comparison: An Evidence Scorecard
- Negative Display Mod Guide: Readability, Compatibility & Failure Checks
- Water Resistance After a Watch Mod: Ratings, Seals & Testing
- GWG-2000 Mudmaster Mod Guide: Strap Fit & Service Boundaries
- Watch Strap Replacement Guide: Identify Hardware, Fit & Retention
- G-Shock Modification Guide: Plan a Reference-Specific First Build
Buying and support
Use mod kits, parts categories and contact support after identifying the reference and fitting question. Read the about page and brand and compatibility notice to understand the independent-store relationship.
Frequently asked questions
Does a common nickname establish parts fit?
No. Use the full reference and written component support list. Similar appearance or a quoted adapter width does not establish the native interface.
Should I start with internal display or dial work?
An external, documented and reversible change is a more manageable first step. Internal work needs its own skills, tools and service checks.
Sources and scope
Manufacturer pages document the original watch. Aftermarket compatibility, materials and installation requirements must be confirmed for the exact part; this guide does not certify a modified watch.
Vickit Watches is an independent retailer. Brand names identify the watches discussed and do not imply endorsement. Read our brand and compatibility notice.