Citizen Promaster Aqualand BN2038 vs Oris Aquis Date Calibre 400
Two divers compared — $500–$1,000 vs $2,500–$5,000
Quick Verdict
The Citizen Promaster Aqualand BN2038 ($500–$1,000) offers Citizen Eco-Drive precision in the tier below the Oris Aquis Date Calibre 400 ($2,500–$5,000). The Promaster Aqualand BN2038 measures 46mm and is rated 200m Diver. The Aquis Date Calibre 400 counters with Swiss Made craftsmanship and 300m (30 ATM) water resistance. Both are exceptional divers 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 Promaster Aqualand BN2038 | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | $500–$1,000 | $2,500–$5,000 |
| Case Size | 46mm | 41.5mm |
| Movement | Eco-Drive | Automatic Calibre 400 |
| Caliber Type | Citizen Eco-Drive | Oris In-House Manufacture |
| Power Reserve | — | 120 Hours (5 Days) |
| Water Resistance | 200m Diver | 300m (30 ATM) |
| Crystal | — | Sapphire Crystal with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Citizen (Japan) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Citizen's design language vs Oris's approach
The Citizen Promaster Aqualand BN2038 features a Stainless Steel case at 46mm with crystal 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
Eco-Drive vs Automatic Calibre 400
The Promaster Aqualand BN2038 runs the Eco-Drive (Citizen Eco-Drive, standard power reserve) at standard 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
46mm vs 41.5mm — different wrist presence
At 46mm, the Promaster Aqualand BN2038 has a bolder wrist presence compared to the Aquis Date Calibre 400 at 41.5mm. Water resistance differs: 200m Diver vs 300m (30 ATM).
Value & Cost of Ownership
Citizen sits in the lower tier
The Citizen Promaster Aqualand BN2038 sits at $500–$1,000 and the Oris Aquis Date Calibre 400 at $2,500–$5,000. On the specs that outlast any price: the Promaster Aqualand BN2038 uses a hardened crystal with a standard reserve, 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 Diver vs 300m (30 ATM)
The Promaster Aqualand BN2038 is rated to 200m Diver while the Aquis Date Calibre 400 handles 300m (30 ATM). The Aquis Date Calibre 400 offers superior water resistance.
Our Verdict
Citizen
Promaster Aqualand BN2038
Choose the Citizen Promaster Aqualand BN2038 if you prioritize Citizen Eco-Drive engineering, Citizen (Japan) craftsmanship, and 200m Diver water resistance. At $500–$1,000, it delivers Eco-Drive with solid 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 Citizen Promaster Aqualand BN2038 and Oris Aquis Date Calibre 400 represent two distinct approaches to the diver category — the Citizen bringing Citizen (Japan) tradition while Oris 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.