Invicta Pro Diver Automatic 23681 vs Longines HydroConquest Automatic
Two divers compared — $50–$100 vs $1,500–$2,500
Quick Verdict
The Invicta Pro Diver Automatic 23681 ($50–$100) offers Automatic (Seiko NH35A) precision in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. The HydroConquest Automatic 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 | Invicta Pro Diver Automatic 23681 | Longines HydroConquest Automatic |
|---|---|---|
| Price | $50–$100 | $1,500–$2,500 |
| Case Size | 40mm | 41mm |
| Movement | Automatic NH35A | Automatic L888.5 |
| Caliber Type | Automatic (Seiko NH35A) | ETA-Based Automatic with Silicon Balance Spring |
| Power Reserve | — | 72 Hours |
| Water Resistance | 200m | 300m (30 ATM) |
| Crystal | Mineral Glass | Sapphire with Anti-Reflective Coating |
| Case Material | — | Stainless Steel |
| Origin | Invicta (Japanese movement) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Invicta's design language vs Longines's approach
The Invicta Pro Diver Automatic 23681 features a steel case at 40mm with Mineral Glass protection. The Longines HydroConquest Automatic offers Stainless Steel construction at 41mm with Sapphire with Anti-Reflective Coating. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic NH35A vs Automatic L888.5
The Pro Diver Automatic 23681 runs the Automatic NH35A (Automatic (Seiko NH35A), standard power reserve) at standard frequency. The HydroConquest Automatic uses the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours reserve) at 25,200 vph (3.5 Hz). The HydroConquest Automatic offers a longer power reserve.
Wearability & Fit
40mm vs 41mm — different wrist presence
At 40mm, the Pro Diver Automatic 23681 wears more compactly on smaller wrists compared to the HydroConquest Automatic at 41mm. Water resistance differs: 200m vs 300m (30 ATM).
Value & Cost of Ownership
Invicta sits in the lower tier
The Invicta Pro Diver Automatic 23681 sits at $50–$100 and the Longines HydroConquest Automatic at $1,500–$2,500. On the specs that outlast any price: the Pro Diver Automatic 23681 uses Mineral Glass with a standard reserve, against Sapphire with Anti-Reflective Coating and 72 Hours on the HydroConquest Automatic. Service intervals are typically 5-7 years for both.
Water Resistance
200m vs 300m (30 ATM)
The Pro Diver Automatic 23681 is rated to 200m while the HydroConquest Automatic handles 300m (30 ATM). The HydroConquest Automatic offers superior water resistance.
Our Verdict
Invicta
Pro Diver Automatic 23681
Choose the Invicta Pro Diver Automatic 23681 if you prioritize Automatic (Seiko NH35A) engineering, Invicta (Japanese movement) craftsmanship, and 200m water resistance. At $50–$100, it delivers Automatic NH35A with solid power reserve.
Check Price on AmazonLongines
HydroConquest Automatic
Choose the Longines HydroConquest Automatic if you value ETA-Based Automatic with Silicon Balance Spring technology, Swiss Made heritage, and 41mm proportions. At $1,500–$2,500, the Automatic L888.5 with 72 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Invicta Pro Diver Automatic 23681 and Longines HydroConquest Automatic represent two distinct approaches to the diver category — the Invicta bringing Invicta (Japanese movement) tradition while Longines delivers Swiss Made engineering.
Frequently Asked Questions
More Comparisons
Tudor Black Bay 58 vs Longines HydroConquest
Is the price jump to Tudor justified?
Hamilton Khaki Field Mechanical vs Longines HydroConquest
A hand-wound field watch against a 300m Swiss diver
Tag Heuer Carrera Chronograph vs Invicta Pro Diver Automatic 23681
Tag Heuer's chronograph meets Invicta's diver
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.