Citizen Tsuyosa Automatic vs Tudor Black Bay 58
Citizen's timepiece meets Tudor's diver
Quick Verdict
The Citizen Tsuyosa Automatic (~$332) offers Citizen/Miyota In-House Automatic precision at $4,148 less than the Tudor Black Bay 58 (~$4,480). The Black Bay 58 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 | Tudor Black Bay 58 |
|---|---|---|
| Price | ~$332 | ~$4,480 |
| Case Size | 40mm | 39mm |
| Movement | Automatic Caliber 8210 | Automatic Manufacture Calibre MT5402 |
| Caliber Type | Citizen/Miyota In-House Automatic | In-House Automatic Manufacture (Kenissi) |
| Power Reserve | 40 Hours | 70 Hours |
| Water Resistance | 50m (5 ATM) | 200m (20 ATM) |
| Crystal | Sapphire Crystal with Cyclops | Domed Sapphire |
| Case Material | Stainless Steel | 316L Stainless Steel |
| Origin | Made in Japan | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Tudor's approach
Movement & Performance
Automatic Caliber 8210 vs Automatic Manufacture Calibre MT5402
Wearability & Fit
40mm vs 39mm — different wrist presence
Value & Cost of Ownership
Citizen is $4,148 more affordable
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
Materials Face-Off
| Component | Citizen Tsuyosa Automatic | Tudor Black Bay 58 |
|---|---|---|
| Case alloy | Stainless steel 316L. | Fully in-house manufacture at Kenissi (Le Locle). 26mm × 4.99mm, 27 jewels, free-sprung balance with variable inertia regulation |
| Sapphire crystal | Verneuil-grown synthetic corundum, Mohs 9. Anti-reflective coating, single side. Mohs 9 | Si hairspring providing antimagnetic protection and superior isochronism |
| 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 | Synthetic corundum (Al₂O₃) grown via Verneuil process, anti-reflective coating on inner surface Mohs 9 |
| Bracelet alloy | Stainless steel 316L matching the case. | Anodized aluminum insert with engraved 60-minute dive scale — deliberately not ceramic |
| 316L Stainless Steel | — | Medical-grade 316L (Cr 16–18%, Ni 10–14%, Mo 2–3%). Satin-brushed tops, polished bevels |
Cost of Ownership Compared
The Citizen Tsuyosa Automatic saves you $3,612 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 Tudor Black Bay 58 if…
- True in-house COSC-certified manufacture movement at sub-$4,000
- 39mm "perfect proportions" — fits virtually any wrist from 6" to 8"
- Heritage collectors — direct lineage to the 1958 Tudor Submariner Reference 7924
- Wilsdorf Foundation (Rolex sister) pedigree without the waitlist or pricing
- 10-year service interval — longest in Swiss watchmaking, an explicit confidence statement
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.
Tudor Black Bay 58
- No date complication — a feature for purists, but a limitation for daily-wearer buyers who want at-a-glance date
- 316L not 904L — Tudor uses standard steel, not Rolex's "Oystersteel" (practically irrelevant for the wearer)
- Aluminum bezel insert scratches more easily than ceramic — heritage-correct, but less daily-wear robust
- Bracelet endlinks are proprietary — limits aftermarket bracelet options (straps still work via drilled lug holes)
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 AmazonTudor
Black Bay 58
Choose the Tudor Black Bay 58 if you value In-House Automatic Manufacture (Kenissi) technology, Swiss Made heritage, and 39mm proportions. At ~$4,480, the Automatic Manufacture Calibre MT5402 with 70 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Citizen Tsuyosa Automatic and Tudor Black Bay 58 represent two distinct approaches to fine watchmaking — the Citizen bringing Made in Japan tradition while Tudor delivers Swiss Made engineering.