Head-to-Head Comparison

Frederique Constant Slimline Moonphase Manufacture vs Casio G-Shock DW-5600 Square

Frederique Constant's dress watch meets Casio's diver

Quick Verdict

The Casio G-Shock DW-5600 Square ($50–$100) delivers Casio Digital Quartz (Battery) technology in the tier below the Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000). The G-Shock DW-5600 Square measures 42.8mm (Square) and is rated 200m (20 ATM). The Slimline Moonphase Manufacture justifies its premium with Swiss Made heritage and Automatic FC-705 (In-House). Both represent excellent choices in the luxury watch category.

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Frederique Constant Slimline Moonphase Manufacture

Frederique Constant

Slimline Moonphase Manufacture

$2,500–$5,000

Casio G-Shock DW-5600 Square

Casio

G-Shock DW-5600 Square

$50–$100

Specifications Compared

FeatureFrederique Constant Slimline Moonphase ManufactureCasio G-Shock DW-5600 Square
Price$2,500–$5,000$50–$100
Case Size42mm42.8mm (Square)
MovementAutomatic FC-705 (In-House)Quartz Module 3229
Caliber TypeIn-House Automatic ManufactureCasio Digital Quartz (Battery)
Power Reserve42 Hours2-Year Battery
Water Resistance30m (3 ATM)200m (20 ATM)
CrystalConvex SapphireMineral Glass
Case MaterialStainless SteelResin
OriginSwiss MadeCasio (Japan)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Frederique Constant's design language vs Casio's approach

The Frederique Constant Slimline Moonphase Manufacture features a Stainless Steel case at 42mm with Convex Sapphire protection. The Casio G-Shock DW-5600 Square offers Resin construction at 42.8mm (Square) with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Frederique Constant

Automatic FC-705 (In-House) vs Quartz Module 3229

The Slimline Moonphase Manufacture runs the Automatic FC-705 (In-House) (In-House Automatic Manufacture, 42 Hours power reserve) at 28,800 vph (4 Hz) frequency. The G-Shock DW-5600 Square uses the Quartz Module 3229 (Casio Digital Quartz (Battery), 2-Year Battery reserve) at standard. The Slimline Moonphase Manufacture edges ahead on power reserve.

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Wearability & Fit

Edge: Frederique Constant

42mm vs 42.8mm (Square) — different wrist presence

At 42mm, the Slimline Moonphase Manufacture wears more compactly on smaller wrists compared to the G-Shock DW-5600 Square at 42.8mm (Square). Water resistance differs: 30m (3 ATM) vs 200m (20 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Frederique Constant Slimline Moonphase Manufacture sits at $2,500–$5,000 and the Casio G-Shock DW-5600 Square at $50–$100. On the specs that outlast any price: the Slimline Moonphase Manufacture uses Convex Sapphire with 42 Hours, against Mineral Glass and 2-Year Battery on the G-Shock DW-5600 Square. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

30m (3 ATM) vs 200m (20 ATM)

The Slimline Moonphase Manufacture is rated to 30m (3 ATM) while the G-Shock DW-5600 Square handles 200m (20 ATM). The G-Shock DW-5600 Square offers superior water resistance.

Our Verdict

Frederique Constant

Slimline Moonphase Manufacture

Choose the Frederique Constant Slimline Moonphase Manufacture if you prioritize In-House Automatic Manufacture engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $2,500–$5,000, it delivers Automatic FC-705 (In-House) with 42 Hours power reserve.

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Casio

G-Shock DW-5600 Square

Choose the Casio G-Shock DW-5600 Square if you value Casio Digital Quartz (Battery) technology, Casio (Japan) heritage, and 42.8mm (Square) proportions. At $50–$100, the Quartz Module 3229 with 2-Year Battery power reserve makes it a compelling choice.

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The Bottom Line

The Frederique Constant Slimline Moonphase Manufacture and Casio G-Shock DW-5600 Square represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Frederique Constant Slimline Moonphase Manufacture ($2,500–$5,000) offers Automatic FC-705 (In-House) with 42 Hours power reserve, while the Casio G-Shock DW-5600 Square ($50–$100) features Quartz Module 3229 with 200m (20 ATM) water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Casio (Japan) engineering.
The Casio G-Shock DW-5600 Square offers better upfront value, sitting a tier lower at $50–$100. However, the Frederique Constant Slimline Moonphase Manufacture may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Slimline Moonphase Manufacture at 42mm with 30m (3 ATM) water resistance handles everyday situations. The G-Shock DW-5600 Square at 42.8mm (Square) with 200m (20 ATM) is similarly capable. The Slimline Moonphase Manufacture uses Convex Sapphire while the G-Shock DW-5600 Square uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

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.