Tudor Black Bay 58 vs Oris Aquis Date Calibre 400
Two divers compared — ~$4,480 vs ~$2,595
Quick Verdict
The Oris Aquis Date Calibre 400 (~$2,595) delivers Oris In-House Manufacture technology at $1,885 less than the Tudor Black Bay 58 (~$4,480). The Black Bay 58 justifies its premium with Swiss Made heritage and Automatic Manufacture Calibre MT5402. Both represent excellent choices in the diver category.
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Specifications Compared
| Feature | Tudor Black Bay 58 | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | ~$4,480 | ~$2,595 |
| 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
Movement & Performance
Automatic Manufacture Calibre MT5402 vs Automatic Calibre 400
Wearability & Fit
39mm vs 41.5mm — different wrist presence
Value & Cost of Ownership
Oris is $1,885 more affordable
Water Resistance
200m (20 ATM) vs 300m (30 ATM)
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 $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
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 ~$4,480, 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 ~$2,595, 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.