Head-to-Head Comparison

Casio G-Shock DW-5600 Square vs Hamilton Khaki Field Mechanical 38mm

Casio's diver meets Hamilton's field watch

Quick Verdict

The Casio G-Shock DW-5600 Square ($50–$100) offers Casio Digital Quartz (Battery) precision in the tier below the Hamilton Khaki Field Mechanical 38mm ($500–$1,000). The G-Shock DW-5600 Square measures 42.8mm (Square) and is rated 200m (20 ATM). The Khaki Field Mechanical 38mm counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.

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Casio G-Shock DW-5600 Square

Casio

G-Shock DW-5600 Square

$50–$100

Hamilton Khaki Field Mechanical 38mm

Hamilton

Khaki Field Mechanical 38mm

$500–$1,000

Specifications Compared

FeatureCasio G-Shock DW-5600 SquareHamilton Khaki Field Mechanical 38mm
Price$50–$100$500–$1,000
Case Size42.8mm (Square)38mm
MovementQuartz Module 3229Hand-Wound H-50 (ETA 2801-2 base)
Caliber TypeCasio Digital Quartz (Battery)Hamilton/ETA Hand-Wound
Power Reserve2-Year Battery80 Hours
Water Resistance200m (20 ATM)50m (5 ATM)
CrystalMineral GlassSapphire Crystal
Case MaterialResinStainless Steel
OriginCasio (Japan)Swiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Casio's design language vs Hamilton's approach

The Casio G-Shock DW-5600 Square features a Resin case at 42.8mm (Square) with Mineral Glass protection. The Hamilton Khaki Field Mechanical 38mm offers Stainless Steel construction at 38mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Hamilton

Quartz Module 3229 vs Hand-Wound H-50 (ETA 2801-2 base)

The G-Shock DW-5600 Square runs the Quartz Module 3229 (Casio Digital Quartz (Battery), 2-Year Battery power reserve) at standard frequency. The Khaki Field Mechanical 38mm uses the Hand-Wound H-50 (ETA 2801-2 base) (Hamilton/ETA Hand-Wound, 80 Hours reserve) at 21,600 vph (3 Hz). The Khaki Field Mechanical 38mm offers a longer power reserve.

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Wearability & Fit

Edge: Hamilton

42.8mm (Square) vs 38mm — different wrist presence

At 42.8mm (Square), the G-Shock DW-5600 Square has a bolder wrist presence compared to the Khaki Field Mechanical 38mm at 38mm. Water resistance differs: 200m (20 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Casio G-Shock DW-5600 Square sits at $50–$100 and the Hamilton Khaki Field Mechanical 38mm at $500–$1,000. On the specs that outlast any price: the G-Shock DW-5600 Square uses Mineral Glass with 2-Year Battery, against Sapphire Crystal and 80 Hours on the Khaki Field Mechanical 38mm. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Casio

200m (20 ATM) vs 50m (5 ATM)

The G-Shock DW-5600 Square is rated to 200m (20 ATM) while the Khaki Field Mechanical 38mm handles 50m (5 ATM). The G-Shock DW-5600 Square is better suited for water activities.

Our Verdict

Casio

G-Shock DW-5600 Square

Choose the Casio G-Shock DW-5600 Square if you prioritize Casio Digital Quartz (Battery) engineering, Casio (Japan) craftsmanship, and 200m (20 ATM) water resistance. At $50–$100, it delivers Quartz Module 3229 with 2-Year Battery power reserve.

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Hamilton

Khaki Field Mechanical 38mm

Choose the Hamilton Khaki Field Mechanical 38mm if you value Hamilton/ETA Hand-Wound technology, Swiss Made heritage, and 38mm proportions. At $500–$1,000, the Hand-Wound H-50 (ETA 2801-2 base) with 80 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Casio G-Shock DW-5600 Square and Hamilton Khaki Field Mechanical 38mm represent two distinct approaches to fine watchmaking — the Casio bringing Casio (Japan) tradition while Hamilton delivers Swiss Made engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Casio G-Shock DW-5600 Square ($50–$100) offers Quartz Module 3229 with 2-Year Battery power reserve, while the Hamilton Khaki Field Mechanical 38mm ($500–$1,000) features Hand-Wound H-50 (ETA 2801-2 base) with 50m (5 ATM) water resistance. Choose based on your priorities: Casio (Japan) craftsmanship vs Swiss Made engineering.
The Casio G-Shock DW-5600 Square offers better upfront value, sitting a tier lower at $50–$100. However, the Hamilton Khaki Field Mechanical 38mm may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The G-Shock DW-5600 Square at 42.8mm (Square) with 200m (20 ATM) water resistance handles everyday situations. The Khaki Field Mechanical 38mm at 38mm with 50m (5 ATM) is similarly capable. The G-Shock DW-5600 Square uses Mineral Glass while the Khaki Field Mechanical 38mm uses Sapphire Crystal. 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.