Hamilton Khaki Field Automatic vs Mido Ocean Star GMT
Hamilton's field watch meets Mido's diver
Quick Verdict
The Hamilton Khaki Field Automatic (~$795) offers Automatic (ETA C07.611 base) precision at $615 less than the Mido Ocean Star GMT (~$1,410). The Ocean Star GMT counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective price points.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Hamilton Khaki Field Automatic | Mido Ocean Star GMT |
|---|---|---|
| Price | ~$795 | ~$1,410 |
| Case Size | 38mm | 44mm |
| Movement | Automatic H-10 | Automatic Caliber 80 (Base ETA C07.661) |
| Caliber Type | Automatic (ETA C07.611 base) | Automatic (ETA C07.661 base) |
| Power Reserve | 80 Hours | 80 Hours |
| Water Resistance | 100m (10 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal | Sapphire with Double-sided AR |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Mido's approach
Movement & Performance
Automatic H-10 vs Automatic Caliber 80 (Base ETA C07.661)
Wearability & Fit
38mm vs 44mm — different wrist presence
Value & Cost of Ownership
Hamilton is $615 more affordable
Water Resistance
100m (10 ATM) vs 200m (20 ATM)
Materials Face-Off
| Component | Hamilton Khaki Field Automatic | Mido Ocean Star GMT |
|---|---|---|
| Case | Stainless steel 316L, brushed finish. | Stainless steel 316L |
| Crystal | Verneuil-grown sapphire, single-side AR coating. | Synthetic sapphire grown via Verneuil process, Mohs 9. Double-sided AR coating — uncommon at this price tier, provides exceptionally clear dial readi Mohs 9 |
| Lume | Super-LumiNova C3 (yellow-green emission). | Ceramic (ZrO₂) — scratchproof, color-stable. Engraved 24-hour scale |
| Strap | Full-grain leather (varies by reference). | Super-LumiNova (variant-dependent grade) |
| Bracelet alloy | — | Stainless steel 316L |
Cost of Ownership Compared
The Hamilton Khaki Field Automatic saves you $722 over 5 years of ownership
Who Should Pick Which
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
Pick the Mido Ocean Star GMT if…
- Enthusiasts wanting proven Swiss/Japanese quality in the $1,000–$2,000 sweet spot
- Dive watch enthusiasts — 200m water resistance is proper dive spec
- Weekend warriors — 80-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Dive watch collectors who appreciate proper ISO-rated tool watches
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)
Mido Ocean Star GMT
- 44mm wears large — too big for under-7" wrists
- ETA base movement at $1,200 — fair value but not in-house prestige
- Crystal AR coating can show fingerprints — double-sided AR is a quality upgrade but requires more frequent wipe-downs
- Bracelet quality is adequate not exceptional — most owners report the bracelet is the watch's weak point; aftermarket rubber/MN straps significantly upgrade daily wear
Our Verdict
Hamilton
Khaki Field Automatic
Choose the Hamilton Khaki Field Automatic if you prioritize Automatic (ETA C07.611 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At ~$795, it delivers Automatic H-10 with 80 Hours power reserve.
Check Price on AmazonMido
Ocean Star GMT
Choose the Mido Ocean Star GMT if you value Automatic (ETA C07.661 base) technology, Swiss Made heritage, and 44mm proportions. At ~$1,410, the Automatic Caliber 80 (Base ETA C07.661) with 80 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Khaki Field Automatic and Mido Ocean Star GMT represent two distinct approaches to fine watchmaking — the Hamilton bringing Swiss Made tradition while Mido delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tissot PRX vs Hamilton Khaki Field
Integrated bracelet sophistication meets military heritage
Tag Heuer Carrera Chronograph vs Hamilton Khaki Field Automatic
Tag Heuer's chronograph meets Hamilton's field watch
Tag Heuer Carrera Chronograph vs Mido Ocean Star GMT
Tag Heuer's chronograph meets Mido's diver