Breitling Navitimer B01 vs Oris Aquis Date Calibre 400
Breitling's chronograph meets Oris's diver
Quick Verdict
The Oris Aquis Date Calibre 400 ($2,500–$5,000) delivers Oris In-House Manufacture technology in the tier below the Breitling Navitimer B01 ($10,000–$25,000). The Aquis Date Calibre 400 measures 41.5mm and is rated 300m (30 ATM). The Navitimer B01 justifies its premium with Swiss Made heritage and Automatic Breitling 01 (Manufacture). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Breitling Navitimer B01 | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | $10,000–$25,000 | $2,500–$5,000 |
| Case Size | 43mm | 41.5mm |
| Movement | Automatic Breitling 01 (Manufacture) | Automatic Calibre 400 |
| Caliber Type | In-House Automatic Chronograph Manufacture | Oris In-House Manufacture |
| Power Reserve | 70 Hours | 120 Hours (5 Days) |
| Water Resistance | 30m (3 ATM) | 300m (30 ATM) |
| Crystal | Cambered Sapphire | Sapphire Crystal with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Breitling's design language vs Oris's approach
The Breitling Navitimer B01 features a Stainless Steel case at 43mm with Cambered 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 Breitling 01 (Manufacture) vs Automatic Calibre 400
The Navitimer B01 runs the Automatic Breitling 01 (Manufacture) (In-House Automatic Chronograph Manufacture, 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
43mm vs 41.5mm — different wrist presence
At 43mm, the Navitimer B01 has a bolder wrist presence compared to the Aquis Date Calibre 400 at 41.5mm. Water resistance differs: 30m (3 ATM) vs 300m (30 ATM).
Value & Cost of Ownership
Oris sits in the lower tier
The Breitling Navitimer B01 sits at $10,000–$25,000 and the Oris Aquis Date Calibre 400 at $2,500–$5,000. On the specs that outlast any price: the Navitimer B01 uses Cambered 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
30m (3 ATM) vs 300m (30 ATM)
The Navitimer B01 is rated to 30m (3 ATM) while the Aquis Date Calibre 400 handles 300m (30 ATM). The Aquis Date Calibre 400 offers superior water resistance.
Materials Face-Off
| Component | Breitling Navitimer B01 | Oris Aquis Date Calibre 400 |
|---|---|---|
| Case alloy | Stainless steel 316L — the industry-standard mid-range Swiss spec. | Oris Caliber 733 |
| Sapphire crystal | Synthetic corundum (Al₂O₃), grown via the Verneuil process for crystal blanks then formed into the cambered (domed) shape. Mohs hardness 9. Anti-refle Mohs 9 | Domed sapphire with anti-reflective coating on inside |
| Lume specification | Super-LumiNova on the hands and markers. Grade and glow duration are not published by the manufacturer for this reference, so neither is claimed here. | Stainless steel 316L (brushed and polished) |
| Bracelet alloy | Stainless steel 316L matching the case. | Unidirectional rotating, scratch-resistant ceramic insert with 60-min dive scale and lume pip |
Cost of Ownership Compared
The Oris Aquis Date Calibre 400 saves you $7,287 over 5 years of ownership
Who Should Pick Which
Pick the Breitling Navitimer B01 if…
- Buyers wanting an in-house movement at the $9K price point
- Accuracy-minded buyers — COSC chronometer certification guarantees precision
- Weekend warriors — 70-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Chronograph enthusiasts looking for a proven timing instrument
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
Breitling Navitimer B01
- 30m water resistance is the headline weakness. At the upper end of the $5,000–$10,000 band this is the most-criticised spec. The Navitimer is an aviation tool, not a water watch.
- Slide rule learning curve. Most owners never actually use the slide rule for in-flight calculation. Knowing how to operate it is a horological badge-of-honour, not a daily-driver feature.
- Dial visual density. The Navitimer dial is the watch's character, but it is also the most cluttered face in any luxury watch under $10k. People who want a clean dial will not love this watch.
- 43mm wears large. The 43mm case + 22mm lug width + cambered crystal pushes the visual presence above the spec. Try before you buy if you're under 6.75" wrist.
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
Breitling
Navitimer B01
Choose the Breitling Navitimer B01 if you prioritize In-House Automatic Chronograph Manufacture engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $10,000–$25,000, it delivers Automatic Breitling 01 (Manufacture) 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 Breitling Navitimer B01 and Oris Aquis Date Calibre 400 represent two distinct approaches to fine watchmaking — the Breitling bringing Swiss Made tradition while Oris delivers Swiss Made engineering.
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