Citizen Tsuyosa Automatic vs Oris Aquis Date Calibre 400
Citizen's timepiece meets Oris's diver
Quick Verdict
The Citizen Tsuyosa Automatic (~$332) offers Citizen/Miyota In-House Automatic precision at $2,263 less than the Oris Aquis Date Calibre 400 (~$2,595). The Aquis Date Calibre 400 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional watches for their respective price points.
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Specifications Compared
| Feature | Citizen Tsuyosa Automatic | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | ~$332 | ~$2,595 |
| Case Size | 40mm | 41.5mm |
| Movement | Automatic Caliber 8210 | Automatic Calibre 400 |
| Caliber Type | Citizen/Miyota In-House Automatic | Oris In-House Manufacture |
| Power Reserve | 40 Hours | 120 Hours (5 Days) |
| Water Resistance | 50m (5 ATM) | 300m (30 ATM) |
| Crystal | Sapphire Crystal with Cyclops | Sapphire Crystal with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Oris's approach
Movement & Performance
Automatic Caliber 8210 vs Automatic Calibre 400
Wearability & Fit
40mm vs 41.5mm — different wrist presence
Value & Cost of Ownership
Citizen is $2,263 more affordable
Water Resistance
50m (5 ATM) vs 300m (30 ATM)
Materials Face-Off
| Component | Citizen Tsuyosa Automatic | Oris Aquis Date Calibre 400 |
|---|---|---|
| Case alloy | Stainless steel 316L. | Oris Caliber 733 |
| Sapphire crystal | Verneuil-grown synthetic corundum, Mohs 9. Anti-reflective coating, single side. Mohs 9 | Domed sapphire with anti-reflective coating on inside |
| Lume specification | Super-LumiNova grade C1 or BGW9 (variant dependent). Glow duration relatively short — Citizen's lume application on the Tsuyosa is modest by Seiko st | Stainless steel 316L (brushed and polished) |
| Bracelet alloy | Stainless steel 316L matching the case. | Unidirectional rotating, scratch-resistant ceramic insert with 60-min dive scale and lume pip |
Cost of Ownership Compared
The Citizen Tsuyosa Automatic saves you $2,239 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 Oris Aquis Date Calibre 400 if…
- Dive watch enthusiasts — 300m water resistance is proper dive spec
- Those who prioritize scratch resistance — sapphire crystal
- Dive watch collectors who appreciate proper ISO-rated tool watches
- Buyers who prefer a commanding wrist presence — 43mm case
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.
Oris Aquis Date Calibre 400
- Sellita base movement at $2,300 — fair value but not in-house prestige (Caliber 400 variants resolve).
- 43.5mm large for smaller wrists (smaller variants available).
- Proprietary endlinks limit strap options.
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 ~$332, it delivers Automatic Caliber 8210 with 40 Hours power reserve.
Check Price on AmazonOris
Aquis Date Calibre 400
Choose the Oris Aquis Date Calibre 400 if you value Oris In-House Manufacture technology, Swiss Made heritage, and 41.5mm proportions. At ~$2,595, the Automatic Calibre 400 with 120 Hours (5 Days) power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Citizen Tsuyosa Automatic and Oris Aquis Date Calibre 400 represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Oris delivers Swiss Made engineering.