Casio AE1200 World Time "Casio Royale" vs Frederique Constant Slimline Moonphase Manufacture
Casio's timepiece meets Frederique Constant's dress watch
Quick Verdict
The Casio AE1200 World Time "Casio Royale" (Under $50) offers Casio Digital Quartz (Battery) precision in the tier below the Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000). The AE1200 World Time "Casio Royale" measures 42.1mm and is rated 100m (10 ATM). The Slimline Moonphase Manufacture counters with Swiss Made craftsmanship and 30m (3 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Casio AE1200 World Time "Casio Royale" | Frederique Constant Slimline Moonphase Manufacture |
|---|---|---|
| Price | Under $50 | $2,500–$5,000 |
| Case Size | 42.1mm | 42mm |
| Movement | Quartz Module 3299 | Automatic FC-705 (In-House) |
| Caliber Type | Casio Digital Quartz (Battery) | In-House Automatic Manufacture |
| Power Reserve | 10-Year Battery | 42 Hours |
| Water Resistance | 100m (10 ATM) | 30m (3 ATM) |
| Crystal | Mineral Glass | Convex Sapphire |
| Case Material | Resin | Stainless Steel |
| Origin | Casio (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Frederique Constant's approach
The Casio AE1200 World Time "Casio Royale" features a Resin case at 42.1mm with Mineral Glass protection. The Frederique Constant Slimline Moonphase Manufacture offers Stainless Steel construction at 42mm with Convex Sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz Module 3299 vs Automatic FC-705 (In-House)
The AE1200 World Time "Casio Royale" runs the Quartz Module 3299 (Casio Digital Quartz (Battery), 10-Year Battery power reserve) at standard frequency. The Slimline Moonphase Manufacture uses the Automatic FC-705 (In-House) (In-House Automatic Manufacture, 42 Hours reserve) at 28,800 vph (4 Hz). The Slimline Moonphase Manufacture offers a longer power reserve.
Wearability & Fit
42.1mm vs 42mm — different wrist presence
At 42.1mm, the AE1200 World Time "Casio Royale" has a bolder wrist presence compared to the Slimline Moonphase Manufacture at 42mm. Water resistance differs: 100m (10 ATM) vs 30m (3 ATM).
Value & Cost of Ownership
Casio sits in the lower tier
The Casio AE1200 World Time "Casio Royale" sits at Under $50 and the Frederique Constant Slimline Moonphase Manufacture at $2,500–$5,000. On the specs that outlast any price: the AE1200 World Time "Casio Royale" uses Mineral Glass with 10-Year Battery, against Convex Sapphire and 42 Hours on the Slimline Moonphase Manufacture. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 30m (3 ATM)
The AE1200 World Time "Casio Royale" is rated to 100m (10 ATM) while the Slimline Moonphase Manufacture handles 30m (3 ATM). The AE1200 World Time "Casio Royale" is better suited for water activities.
Our Verdict
Casio
AE1200 World Time "Casio Royale"
Choose the Casio AE1200 World Time "Casio Royale" if you prioritize Casio Digital Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 100m (10 ATM) water resistance. At Under $50, it delivers Quartz Module 3299 with 10-Year Battery power reserve.
Check Price on AmazonFrederique Constant
Slimline Moonphase Manufacture
Choose the Frederique Constant Slimline Moonphase Manufacture if you value In-House Automatic Manufacture technology, Swiss Made heritage, and 42mm proportions. At $2,500–$5,000, the Automatic FC-705 (In-House) with 42 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio AE1200 World Time "Casio Royale" and Frederique Constant Slimline Moonphase Manufacture represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Frederique Constant delivers Swiss Made engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.

