Citizen Tsuyosa Automatic vs Hamilton Khaki Field Automatic
Citizen's timepiece meets Hamilton's field watch
Quick Verdict
The Citizen Tsuyosa Automatic ($250–$500) offers Citizen/Miyota In-House Automatic precision in the tier below the Hamilton Khaki Field Automatic ($500–$1,000). The Tsuyosa Automatic measures 40mm and is rated 50m (5 ATM). The Khaki Field Automatic counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Citizen Tsuyosa Automatic | Hamilton Khaki Field Automatic |
|---|---|---|
| Price | $250–$500 | $500–$1,000 |
| Case Size | 40mm | 38mm |
| Movement | Automatic Caliber 8210 | Automatic H-10 |
| Caliber Type | Citizen/Miyota In-House Automatic | Automatic (ETA C07.611 base) |
| Power Reserve | 40 Hours | 80 Hours |
| Water Resistance | 50m (5 ATM) | 100m (10 ATM) |
| Crystal | Sapphire Crystal with Cyclops | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Hamilton's approach
The Citizen Tsuyosa Automatic features a Stainless Steel case at 40mm with Sapphire Crystal with Cyclops 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 Caliber 8210 vs Automatic H-10
The Tsuyosa Automatic runs the Automatic Caliber 8210 (Citizen/Miyota In-House Automatic, 40 Hours power reserve) at 21,600 vph (3 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 Tsuyosa Automatic has a bolder wrist presence compared to the Khaki Field Automatic at 38mm. Water resistance differs: 50m (5 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Tsuyosa Automatic sits at $250–$500 and the Hamilton Khaki Field Automatic at $500–$1,000. On the specs that outlast any price: the Tsuyosa Automatic uses Sapphire Crystal with Cyclops with 40 Hours, against Sapphire Crystal and 80 Hours on the Khaki Field Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 100m (10 ATM)
The Tsuyosa Automatic is rated to 50m (5 ATM) while the Khaki Field Automatic handles 100m (10 ATM). The Khaki Field Automatic offers superior water resistance.
Materials Face-Off
| Component | Citizen Tsuyosa Automatic | Hamilton Khaki Field Automatic |
|---|---|---|
| Case alloy | Stainless steel 316L. | Stainless steel, brushed finish. Hamilton does not publish the alloy grade for this reference. |
| Sapphire crystal | Verneuil-grown synthetic corundum, Mohs 9. Anti-reflective coating, single side. Mohs 9 | Verneuil-grown sapphire, single-side AR coating. |
| Lume specification | Super-LumiNova on the hands and markers. The application is light - this is not a watch to rely on for low-light legibility. Grade and glow duration are not published by the manufacturer for this reference, so neither is claimed here. | 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. |
| Bracelet alloy | Stainless steel 316L matching the case. | Full-grain leather (varies by reference). |
Cost of Ownership Compared
The Citizen Tsuyosa Automatic saves you $284 over 5 years of ownership
Who Should Pick Which
Pick the Citizen Tsuyosa Automatic if…
- Budget-conscious buyers wanting serious quality under $500
- Those who prioritize scratch resistance — sapphire crystal
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
Citizen Tsuyosa Automatic
- No hacking seconds. When you pull the crown to set the time, the seconds hand continues running. Setting precisely to-the-second is impossible. The single most-cited Tsuyosa complaint.
- Unidirectional rotor. Only winds in one direction; reserves take longer to build than bidirectional movements.
- Modest accuracy spec. ±10 to +25 sec/day in practice is the realistic band; significantly worse than the Tissot Powermatic 80.
- Proprietary endlinks. Limited strap-swap options.
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
Citizen
Tsuyosa Automatic
Choose the Citizen Tsuyosa Automatic if you prioritize Citizen/Miyota In-House Automatic engineering, Made in Japan craftsmanship, and 50m (5 ATM) water resistance. At $250–$500, it delivers Automatic Caliber 8210 with 40 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 Citizen Tsuyosa Automatic and Hamilton Khaki Field Automatic represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Hamilton delivers Swiss Made 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.