Citizen Tsuyosa Automatic vs Mido Ocean Star GMT
Citizen's timepiece meets Mido's diver
Quick Verdict
The Citizen Tsuyosa Automatic (~$332) offers Citizen/Miyota In-House Automatic precision at $1,078 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.
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Specifications Compared
| Feature | Citizen Tsuyosa Automatic | Mido Ocean Star GMT |
|---|---|---|
| Price | ~$332 | ~$1,410 |
| Case Size | 40mm | 44mm |
| Movement | Automatic Caliber 8210 | Automatic Caliber 80 (Base ETA C07.661) |
| Caliber Type | Citizen/Miyota In-House Automatic | Automatic (ETA C07.661 base) |
| Power Reserve | 40 Hours | 80 Hours |
| Water Resistance | 50m (5 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal with Cyclops | Sapphire with Double-sided AR |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Mido's approach
Movement & Performance
Automatic Caliber 8210 vs Automatic Caliber 80 (Base ETA C07.661)
Wearability & Fit
40mm vs 44mm — different wrist presence
Value & Cost of Ownership
Citizen is $1,078 more affordable
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
Materials Face-Off
| Component | Citizen Tsuyosa Automatic | Mido Ocean Star GMT |
|---|---|---|
| Case alloy | Stainless steel 316L. | Stainless steel 316L |
| Sapphire crystal | Verneuil-grown synthetic corundum, Mohs 9. Anti-reflective coating, single side. Mohs 9 | 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 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 | Ceramic (ZrO₂) — scratchproof, color-stable. Engraved 24-hour scale |
| Bracelet alloy | Stainless steel 316L matching the case. | Super-LumiNova (variant-dependent grade) |
| Bracelet alloy | — | Stainless steel 316L |
Cost of Ownership Compared
The Citizen Tsuyosa Automatic saves you $1,006 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 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
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.
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
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 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 Citizen Tsuyosa Automatic and Mido Ocean Star GMT represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Mido delivers Swiss Made engineering.