Invicta Pro Diver Automatic 23681 vs Zenith Chronomaster El Primero
Invicta's diver meets Zenith's chronograph
Quick Verdict
The Invicta Pro Diver Automatic 23681 ($50–$100) offers Automatic (Seiko NH35A) precision in the tier below the Zenith Chronomaster El Primero ($5,000–$10,000). The Pro Diver Automatic 23681 measures 40mm and is rated 200m. The Chronomaster El Primero counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.
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Specifications Compared
| Feature | Invicta Pro Diver Automatic 23681 | Zenith Chronomaster El Primero |
|---|---|---|
| Price | $50–$100 | $5,000–$10,000 |
| Case Size | 40mm | 38mm |
| Movement | Automatic NH35A | Automatic El Primero 3600 (5Hz) |
| Caliber Type | Automatic (Seiko NH35A) | In-House Automatic Chronograph Manufacture |
| Power Reserve | — | 60 Hours |
| Water Resistance | 200m | 50m (5 ATM) |
| Crystal | Mineral Glass | Domed Sapphire |
| Case Material | — | Stainless Steel |
| Origin | Invicta (Japanese movement) | Swiss Made |
Category-by-Category Analysis
Design & Aesthetics
Invicta's design language vs Zenith's approach
The Invicta Pro Diver Automatic 23681 features a steel case at 40mm with Mineral Glass protection. The Zenith Chronomaster El Primero offers Stainless Steel construction at 38mm with Domed Sapphire. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic NH35A vs Automatic El Primero 3600 (5Hz)
The Pro Diver Automatic 23681 runs the Automatic NH35A (Automatic (Seiko NH35A), standard power reserve) at standard frequency. The Chronomaster El Primero uses the Automatic El Primero 3600 (5Hz) (In-House Automatic Chronograph Manufacture, 60 Hours reserve) at 36,000 vph (5 Hz). The Chronomaster El Primero offers a longer power reserve.
Wearability & Fit
40mm vs 38mm — different wrist presence
At 40mm, the Pro Diver Automatic 23681 has a bolder wrist presence compared to the Chronomaster El Primero at 38mm. Water resistance differs: 200m vs 50m (5 ATM).
Value & Cost of Ownership
Invicta sits in the lower tier
The Invicta Pro Diver Automatic 23681 sits at $50–$100 and the Zenith Chronomaster El Primero at $5,000–$10,000. On the specs that outlast any price: the Pro Diver Automatic 23681 uses Mineral Glass with a standard reserve, against Domed Sapphire and 60 Hours on the Chronomaster El Primero. Service intervals are typically 5-7 years for both.
Water Resistance
200m vs 50m (5 ATM)
The Pro Diver Automatic 23681 is rated to 200m while the Chronomaster El Primero handles 50m (5 ATM). The Pro Diver Automatic 23681 is better suited for water activities.
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 AmazonZenith
Chronomaster El Primero
Choose the Zenith Chronomaster El Primero if you value In-House Automatic Chronograph Manufacture technology, Swiss Made heritage, and 38mm proportions. At $5,000–$10,000, the Automatic El Primero 3600 (5Hz) with 60 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Invicta Pro Diver Automatic 23681 and Zenith Chronomaster El Primero represent two distinct approaches to fine watchmaking — the Invicta bringing Invicta (Japanese movement) tradition while Zenith delivers Swiss Made engineering.
Frequently Asked Questions
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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.