Hamilton Ventura Quartz vs Seiko Presage SSA425 Open Heart
Two timepieces compared — $500–$1,000 vs $250–$500
Quick Verdict
The Seiko Presage SSA425 Open Heart ($250–$500) delivers Seiko In-House Automatic technology in the tier below the Hamilton Ventura Quartz ($500–$1,000). The Presage SSA425 Open Heart measures 40.5mm and is rated 50m (5 ATM). The Ventura Quartz justifies its premium with Swiss Made (Swatch Group) heritage and Quartz F06.111. Both represent excellent choices in the timepiece category.
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Specifications Compared
| Feature | Hamilton Ventura Quartz | Seiko Presage SSA425 Open Heart |
|---|---|---|
| Price | $500–$1,000 | $250–$500 |
| Case Size | 32.3mm x 50.3mm (Shield) | 40.5mm |
| Movement | Quartz F06.111 | Automatic Caliber 4R38 |
| Caliber Type | Swiss High-Accuracy Quartz | Seiko In-House Automatic |
| Power Reserve | 60 Months (Battery) | 41 Hours |
| Water Resistance | 50m (5 ATM) | 50m (5 ATM) |
| Crystal | Sapphire | Hardlex Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made (Swatch Group) | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Hamilton's design language vs Seiko's approach
The Hamilton Ventura Quartz features a Stainless Steel case at 32.3mm x 50.3mm (Shield) with Sapphire protection. The Seiko Presage SSA425 Open Heart offers Stainless Steel construction at 40.5mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz F06.111 vs Automatic Caliber 4R38
The Ventura Quartz runs the Quartz F06.111 (Swiss High-Accuracy Quartz, 60 Months (Battery) power reserve) at 32,768 Hz (Quartz) frequency. The Presage SSA425 Open Heart uses the Automatic Caliber 4R38 (Seiko In-House Automatic, 41 Hours reserve) at 21,600 vph (3 Hz). The Ventura Quartz edges ahead on power reserve.
Wearability & Fit
32.3mm x 50.3mm (Shield) vs 40.5mm — different wrist presence
At 32.3mm x 50.3mm (Shield), the Ventura Quartz wears more compactly on smaller wrists compared to the Presage SSA425 Open Heart at 40.5mm. Water resistance differs: 50m (5 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Hamilton Ventura Quartz sits at $500–$1,000 and the Seiko Presage SSA425 Open Heart at $250–$500. On the specs that outlast any price: the Ventura Quartz uses Sapphire with 60 Months (Battery), against Hardlex Crystal and 41 Hours on the Presage SSA425 Open Heart. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 50m (5 ATM)
The Ventura Quartz is rated to 50m (5 ATM) while the Presage SSA425 Open Heart handles 50m (5 ATM). Both offer identical water resistance ratings.
Our Verdict
Hamilton
Ventura Quartz
Choose the Hamilton Ventura Quartz if you prioritize Swiss High-Accuracy Quartz engineering, Swiss Made (Swatch Group) craftsmanship, and 50m (5 ATM) water resistance. At $500–$1,000, it delivers Quartz F06.111 with 60 Months (Battery) power reserve.
Check Price on AmazonSeiko
Presage SSA425 Open Heart
Choose the Seiko Presage SSA425 Open Heart if you value Seiko In-House Automatic technology, Made in Japan heritage, and 40.5mm proportions. At $250–$500, the Automatic Caliber 4R38 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Ventura Quartz and Seiko Presage SSA425 Open Heart represent two distinct approaches to the timepiece category — the Hamilton bringing Swiss Made (Swatch Group) tradition while Seiko delivers Made in Japan 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.