Hamilton Intra-Matic Auto Chronograph vs Hamilton Khaki Field Automatic
Hamilton's chronograph meets Hamilton's field watch
Quick Verdict
The Hamilton Khaki Field Automatic ($500–$1,000) delivers Automatic (ETA C07.611 base) technology in the tier below the Hamilton Intra-Matic Auto Chronograph ($2,500–$5,000). The Khaki Field Automatic measures 38mm and is rated 100m (10 ATM). The Intra-Matic Auto Chronograph justifies its premium with Swiss Made heritage and Automatic H-31. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Hamilton Intra-Matic Auto Chronograph | Hamilton Khaki Field Automatic |
|---|---|---|
| Price | $2,500–$5,000 | $500–$1,000 |
| Case Size | 40mm | 38mm |
| Movement | Automatic H-31 | Automatic H-10 |
| Caliber Type | Valjoux-Based Automatic Chronograph | Automatic (ETA C07.611 base) |
| Power Reserve | 60 Hours | 80 Hours |
| Water Resistance | 100m (10 ATM) | 100m (10 ATM) |
| Crystal | Sapphire (Domed) | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Hamilton's approach
The Hamilton Intra-Matic Auto Chronograph features a Stainless Steel case at 40mm with Sapphire (Domed) protection. The Hamilton Khaki Field Automatic offers Stainless Steel construction at 38mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic H-31 vs Automatic H-10
The Intra-Matic Auto Chronograph runs the Automatic H-31 (Valjoux-Based Automatic Chronograph, 60 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Khaki Field Automatic uses the Automatic H-10 (Automatic (ETA C07.611 base), 80 Hours reserve) at 21,600 vph (3 Hz). The Khaki Field Automatic offers a longer power reserve.
Wearability & Fit
40mm vs 38mm — different wrist presence
At 40mm, the Intra-Matic Auto Chronograph has a bolder wrist presence compared to the Khaki Field Automatic at 38mm. Water resistance differs: 100m (10 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Hamilton sits in the lower tier
The Hamilton Intra-Matic Auto Chronograph sits at $2,500–$5,000 and the Hamilton Khaki Field Automatic at $500–$1,000. On the specs that outlast any price: the Intra-Matic Auto Chronograph uses Sapphire (Domed) with 60 Hours, against Sapphire Crystal and 80 Hours on the Khaki Field Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
100m (10 ATM) vs 100m (10 ATM)
The Intra-Matic Auto Chronograph is rated to 100m (10 ATM) while the Khaki Field Automatic handles 100m (10 ATM). Both offer identical water resistance ratings.
Materials Face-Off
| Component | Hamilton Intra-Matic Auto Chronograph | Hamilton Khaki Field Automatic |
|---|---|---|
| Movement | Hamilton H-31 caliber | Stainless steel, brushed finish. Hamilton does not publish the alloy grade for this reference. |
| Crystal | Domed sapphire ("box crystal" silhouette) | Verneuil-grown sapphire, single-side AR coating. |
| Case | Stainless steel 316L | Super-LumiNova on the hands and hour numerals. Hamilton lists "Super Luminova: Yes" for this reference and does not publish a grade, so none is claimed here. |
| Strap | — | Full-grain leather (varies by reference). |
Cost of Ownership Compared
The Hamilton Khaki Field Automatic saves you $2,101 over 5 years of ownership
Who Should Pick Which
Pick the Hamilton Intra-Matic Auto Chronograph if…
- Active lifestyle wearers — 100m water resistance handles swimming and water sports
- Practical daily wearers — 60-hour reserve gives breathing room
- Those who prioritize scratch resistance — sapphire crystal
- Chronograph enthusiasts looking for a proven timing instrument
- Heritage enthusiasts drawn to ** Hamilton's historical pedigree
Pick the Hamilton Khaki Field Automatic if…
- Strong value proposition under $1,000 with quality construction
- Active lifestyle wearers — 100m water resistance handles swimming and water sports
- Weekend warriors — 80-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Military/field watch enthusiasts who value legibility and durability
Hamilton Intra-Matic Auto Chronograph
- 14.6mm thickness honest but tall.
- Not column-wheel — cam-switching 7753 architecture.
- H-31 isn't in-house in the strict sense.
- Lume is modest.
Hamilton Khaki Field Automatic
- Same H-10 / C07 movement as Tissot PRX and Mido — paying brand premium for the Hamilton heritage
- 3 Hz "slow" seconds beat (visible 6 ticks/sec vs. 8)
- Strap quality is adequate, not exceptional
- No hacking, but movement is auto-only (no hand-wind on the 80h variant — older H-30 caliber refs had it)
Our Verdict
Hamilton
Intra-Matic Auto Chronograph
Choose the Hamilton Intra-Matic Auto Chronograph if you prioritize Valjoux-Based Automatic Chronograph engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $2,500–$5,000, it delivers Automatic H-31 with 60 Hours power reserve.
Check Price on AmazonHamilton
Khaki Field Automatic
Choose the Hamilton Khaki Field Automatic if you value Automatic (ETA C07.611 base) technology, Swiss Made heritage, and 38mm proportions. At $500–$1,000, the Automatic H-10 with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Intra-Matic Auto Chronograph and Hamilton Khaki Field Automatic represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Hamilton delivers Swiss Made engineering.
Frequently Asked Questions
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