Tudor Black Bay 58 vs Oris Aquis Date Calibre 400
Two divers compared — $2,500–$5,000 vs $2,500–$5,000
Quick Verdict
The Tudor Black Bay 58 ($2,500–$5,000) and Oris Aquis Date Calibre 400 ($2,500–$5,000) are closely matched divers at similar price points. The Black Bay 58 emphasizes In-House Automatic Manufacture (Kenissi) engineering while the Aquis Date Calibre 400 focuses on Swiss Made craftsmanship.
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Specifications Compared
| Feature | Tudor Black Bay 58 | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | $2,500–$5,000 | $2,500–$5,000 |
| Case Size | 39mm | 41.5mm |
| Movement | Automatic Manufacture Calibre MT5402 | Automatic Calibre 400 |
| Caliber Type | In-House Automatic Manufacture (Kenissi) | Oris In-House Manufacture |
| Power Reserve | 70 Hours | 120 Hours (5 Days) |
| Water Resistance | 200m (20 ATM) | 300m (30 ATM) |
| Crystal | Domed Sapphire | Sapphire Crystal with Anti-Reflective Coating |
| Case Material | 316L Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Tudor's design language vs Oris's approach
The Tudor Black Bay 58 features a 316L Stainless Steel case at 39mm with Domed Sapphire protection. The Oris Aquis Date Calibre 400 offers Stainless Steel construction at 41.5mm with Sapphire Crystal with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Manufacture Calibre MT5402 vs Automatic Calibre 400
The Black Bay 58 runs the Automatic Manufacture Calibre MT5402 (In-House Automatic Manufacture (Kenissi), 70 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Aquis Date Calibre 400 uses the Automatic Calibre 400 (Oris In-House Manufacture, 120 Hours (5 Days) reserve) at 28,800 vph (4 Hz). The Aquis Date Calibre 400 offers a longer power reserve.
Wearability & Fit
39mm vs 41.5mm — different wrist presence
At 39mm, the Black Bay 58 wears more compactly on smaller wrists compared to the Aquis Date Calibre 400 at 41.5mm. Water resistance differs: 200m (20 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Same tier — different value propositions
The Tudor Black Bay 58 sits at $2,500–$5,000 and the Oris Aquis Date Calibre 400 at $2,500–$5,000. On the specs that outlast any price: the Black Bay 58 uses Domed Sapphire with 70 Hours, against Sapphire Crystal with Anti-Reflective Coating and 120 Hours (5 Days) on the Aquis Date Calibre 400. Service intervals are typically 5-7 years for both.
Water Resistance
200m (20 ATM) vs 300m (30 ATM)
The Black Bay 58 is rated to 200m (20 ATM) while the Aquis Date Calibre 400 handles 300m (30 ATM). The Aquis Date Calibre 400 offers superior water resistance.
Materials Face-Off
| Component | Tudor Black Bay 58 | Oris Aquis Date Calibre 400 |
|---|---|---|
| In-House MT5402 Caliber | Fully in-house manufacture at Kenissi (Le Locle). 26mm × 4.99mm, 27 jewels, free-sprung balance with variable inertia regulation | Oris Caliber 733 |
| Silicon Balance Spring | Si hairspring providing antimagnetic protection and superior isochronism | Domed sapphire with anti-reflective coating on inside |
| Domed Sapphire Crystal | Synthetic corundum (Al₂O₃) grown via Verneuil process, anti-reflective coating on inner surface Mohs 9 | Stainless steel 316L (brushed and polished) |
| Anodized Aluminum Bezel | Anodized aluminum insert with engraved 60-minute dive scale — deliberately not ceramic | Unidirectional rotating, scratch-resistant ceramic insert with 60-min dive scale and lume pip |
| 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 Oris Aquis Date Calibre 400 saves you $1,373 over 5 years of ownership
Who Should Pick Which
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
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
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)
Oris Aquis Date Calibre 400
- Sellita base movement at this price — 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
Tudor
Black Bay 58
Choose the Tudor Black Bay 58 if you prioritize In-House Automatic Manufacture (Kenissi) engineering, Swiss Made craftsmanship, and 200m (20 ATM) water resistance. At $2,500–$5,000, it delivers Automatic Manufacture Calibre MT5402 with 70 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 $2,500–$5,000, the Automatic Calibre 400 with 120 Hours (5 Days) power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Tudor Black Bay 58 and Oris Aquis Date Calibre 400 represent two distinct approaches to the diver category — the Tudor bringing Swiss Made tradition while Oris delivers Swiss Made engineering.
Frequently Asked Questions
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