Longines Master Collection Moonphase vs Oris Aquis Date Calibre 400
Longines's dress watch meets Oris's diver
Quick Verdict
The Oris Aquis Date Calibre 400 (~$2,595) delivers Oris In-House Manufacture technology at $405 less than the Longines Master Collection Moonphase (~$3,000). The Master Collection Moonphase justifies its premium with Swiss Made heritage and Automatic Caliber L899. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Longines Master Collection Moonphase | Oris Aquis Date Calibre 400 |
|---|---|---|
| Price | ~$3,000 | ~$2,595 |
| Case Size | 40mm | 41.5mm |
| Movement | Automatic Caliber L899 | Automatic Calibre 400 |
| Caliber Type | Automatic (ETA A31.L91 base) | Oris In-House Manufacture |
| Power Reserve | 72 Hours | 120 Hours (5 Days) |
| Water Resistance | 30m (3 ATM) | 300m (30 ATM) |
| Crystal | Sapphire Crystal | Sapphire Crystal with Anti-Reflective Coating |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Longines's design language vs Oris's approach
Movement & Performance
Automatic Caliber L899 vs Automatic Calibre 400
Wearability & Fit
40mm vs 41.5mm — different wrist presence
Value & Cost of Ownership
Oris is $405 more affordable
Water Resistance
30m (3 ATM) vs 300m (30 ATM)
Materials Face-Off
| Component | Longines Master Collection Moonphase | Oris Aquis Date Calibre 400 |
|---|---|---|
| Case alloy | Stainless steel 316L (standard mid-range Swiss spec). | Oris Caliber 733 |
| Crystal | Synthetic sapphire grown via Verneuil process, Mohs 9, anti-reflective coating on interior. Mohs 9 | Domed sapphire with anti-reflective coating on inside |
| Lume specification | None (dress watch by design). | Stainless steel 316L (brushed and polished) |
| Dial finishing | Barleycorn guilloché — fine textured pattern resembling barley seed heads, machine-engraved or stamped into the dial brass disc. One of horology's cl | Unidirectional rotating, scratch-resistant ceramic insert with 60-min dive scale and lume pip |
| Hand finishing | Blued steel via thermal treatment (heat-blued) or chemical bluing process. | — |
Cost of Ownership Compared
The Oris Aquis Date Calibre 400 saves you $261 over 5 years of ownership
Who Should Pick Which
Pick the Longines Master Collection Moonphase if…
- Weekend warriors — 72-hour power reserve means it survives two days off the wrist
- Those who prioritize scratch resistance — sapphire crystal
- Dress watch seekers who want understated elegance
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
Longines Master Collection Moonphase
- ETA A31 base at $2,450 — though Longines-exclusive, the architecture is shared platform. Some buyers expect in-house at this price.
- 30m water resistance — strictly dress watch use; no swimming, no shower
- Moonphase indication is rough — like most "simple" moonphase movements, the 29.5-day approximation is imprecise vs. actual 29.53-day lunar cycle (requires ~1-day adjustment every 2.5 years)
- 3.5 Hz frequency is unusual — not as smooth as 4 Hz peers
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
Longines
Master Collection Moonphase
Choose the Longines Master Collection Moonphase if you prioritize Automatic (ETA A31.L91 base) engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At ~$3,000, it delivers Automatic Caliber L899 with 72 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 Longines Master Collection Moonphase and Oris Aquis Date Calibre 400 represent two distinct approaches to fine watchmaking — the Longines bringing Swiss Made tradition while Oris delivers Swiss Made engineering.
Frequently Asked Questions
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