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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Specifications Compared
| Feature | Hamilton Khaki Field Mechanical 38mm | Timex Marlin Automatic 40mm |
|---|---|---|
| Price | $500–$1,000 | $250–$500 |
| Case Size | 38mm | 40mm |
| Movement | Hand-Wound H-50 (ETA 2801-2 base) | Automatic Miyota 8205 |
| Caliber Type | Hamilton/ETA Hand-Wound | Miyota Automatic |
| Power Reserve | 80 Hours | 40 Hours |
| Water Resistance | 50m (5 ATM) | 30m (3 ATM) |
| Crystal | Sapphire Crystal | Mineral Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Made in Japan (Movement) |
Category-by-Category Analysis
Design & Aesthetics
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.
Movement & Performance
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.
Wearability & Fit
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).
Value & Cost of Ownership
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.
Water Resistance
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.
Check Price on AmazonTimex
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.
Check Price on AmazonThe 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
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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.

