Head-to-Head Comparison

Hamilton Khaki Field Mechanical 38mm vs Timex Marlin Automatic 40mm

Hamilton's field watch meets Timex's timepiece

Quick Verdict

The Timex Marlin Automatic 40mm ($250–$500) delivers Miyota Automatic technology in the tier below the Hamilton Khaki Field Mechanical 38mm ($500–$1,000). The Marlin Automatic 40mm measures 40mm and is rated 30m (3 ATM). The Khaki Field Mechanical 38mm justifies its premium with Swiss Made heritage and Hand-Wound H-50 (ETA 2801-2 base). Both represent excellent choices in the luxury watch category.

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Hamilton Khaki Field Mechanical 38mm

Hamilton

Khaki Field Mechanical 38mm

$500–$1,000

Timex Marlin Automatic 40mm

Timex

Marlin Automatic 40mm

$250–$500

Specifications Compared

FeatureHamilton Khaki Field Mechanical 38mmTimex Marlin Automatic 40mm
Price$500–$1,000$250–$500
Case Size38mm40mm
MovementHand-Wound H-50 (ETA 2801-2 base)Automatic Miyota 8205
Caliber TypeHamilton/ETA Hand-WoundMiyota Automatic
Power Reserve80 Hours40 Hours
Water Resistance50m (5 ATM)30m (3 ATM)
CrystalSapphire CrystalMineral Crystal
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeMade in Japan (Movement)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Hamilton's design language vs Timex's approach

The Hamilton Khaki Field Mechanical 38mm features a Stainless Steel case at 38mm with Sapphire Crystal protection. The Timex Marlin Automatic 40mm offers Stainless Steel construction at 40mm with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Hamilton

Hand-Wound H-50 (ETA 2801-2 base) vs Automatic Miyota 8205

The Khaki Field Mechanical 38mm runs the Hand-Wound H-50 (ETA 2801-2 base) (Hamilton/ETA Hand-Wound, 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Marlin Automatic 40mm uses the Automatic Miyota 8205 (Miyota Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Khaki Field Mechanical 38mm edges ahead on power reserve.

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Wearability & Fit

Edge: Hamilton

38mm vs 40mm — different wrist presence

At 38mm, the Khaki Field Mechanical 38mm wears more compactly on smaller wrists compared to the Marlin Automatic 40mm at 40mm. Water resistance differs: 50m (5 ATM) vs 30m (3 ATM).

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Value & Cost of Ownership

Edge: Timex

Timex sits in the lower tier

The Hamilton Khaki Field Mechanical 38mm sits at $500–$1,000 and the Timex Marlin Automatic 40mm at $250–$500. On the specs that outlast any price: the Khaki Field Mechanical 38mm uses Sapphire Crystal with 80 Hours, against Mineral Crystal and 40 Hours on the Marlin Automatic 40mm. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Hamilton

50m (5 ATM) vs 30m (3 ATM)

The Khaki Field Mechanical 38mm is rated to 50m (5 ATM) while the Marlin Automatic 40mm handles 30m (3 ATM). The Khaki Field Mechanical 38mm is better suited for water activities.

Our Verdict

Hamilton

Khaki Field Mechanical 38mm

Choose the Hamilton Khaki Field Mechanical 38mm if you prioritize Hamilton/ETA Hand-Wound engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $500–$1,000, it delivers Hand-Wound H-50 (ETA 2801-2 base) with 80 Hours power reserve.

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Timex

Marlin Automatic 40mm

Choose the Timex Marlin Automatic 40mm if you value Miyota Automatic technology, Made in Japan (Movement) heritage, and 40mm proportions. At $250–$500, the Automatic Miyota 8205 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Hamilton Khaki Field Mechanical 38mm and Timex Marlin Automatic 40mm represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Timex delivers Made in Japan (Movement) engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Hamilton Khaki Field Mechanical 38mm ($500–$1,000) offers Hand-Wound H-50 (ETA 2801-2 base) with 80 Hours power reserve, while the Timex Marlin Automatic 40mm ($250–$500) features Automatic Miyota 8205 with 30m (3 ATM) water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Made in Japan (Movement) engineering.
The Timex Marlin Automatic 40mm offers better upfront value, sitting a tier lower at $250–$500. 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 Khaki Field Mechanical 38mm at 38mm with 50m (5 ATM) water resistance handles everyday situations. The Marlin Automatic 40mm at 40mm with 30m (3 ATM) is similarly capable. The Khaki Field Mechanical 38mm uses Sapphire Crystal while the Marlin Automatic 40mm uses Mineral 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.