Citizen Tsuyosa Automatic vs Tudor Black Bay 58
Citizen's timepiece meets Tudor's diver
Quick Verdict
The Citizen Tsuyosa Automatic ($250–$500) offers Citizen/Miyota In-House Automatic precision in the tier below the Tudor Black Bay 58 ($2,500–$5,000). The Tsuyosa Automatic measures 40mm and is rated 50m (5 ATM). The Black Bay 58 counters with Swiss Made craftsmanship and 200m (20 ATM) water resistance. Both are exceptional watches for their respective tiers.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Citizen Tsuyosa Automatic | Tudor Black Bay 58 |
|---|---|---|
| Price | $250–$500 | $2,500–$5,000 |
| 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
The Citizen Tsuyosa Automatic features a Stainless Steel case at 40mm with Sapphire Crystal with Cyclops protection. The Tudor Black Bay 58 offers 316L Stainless Steel construction at 39mm with Domed Sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 8210 vs Automatic Manufacture Calibre MT5402
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 Black Bay 58 uses the Automatic Manufacture Calibre MT5402 (In-House Automatic Manufacture (Kenissi), 70 Hours reserve) at 28,800 vph (4 Hz). The Black Bay 58 offers a longer power reserve.
Wearability & Fit
40mm vs 39mm — different wrist presence
At 40mm, the Tsuyosa Automatic has a bolder wrist presence compared to the Black Bay 58 at 39mm. Water resistance differs: 50m (5 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Tsuyosa Automatic sits at $250–$500 and the Tudor Black Bay 58 at $2,500–$5,000. On the specs that outlast any price: the Tsuyosa Automatic uses Sapphire Crystal with Cyclops with 40 Hours, against Domed Sapphire and 70 Hours on the Black Bay 58. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 200m (20 ATM)
The Tsuyosa Automatic is rated to 50m (5 ATM) while the Black Bay 58 handles 200m (20 ATM). The Black Bay 58 offers superior water resistance.
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 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. | 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 $250–$500, 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 $2,500–$5,000, 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.
Frequently Asked Questions
More Comparisons
Explore These Watches
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.