Hamilton Ventura Quartz vs Seiko 5 Sports 5KX
Two timepieces compared — $500–$1,000 vs $250–$500
Quick Verdict
The Seiko 5 Sports 5KX ($250–$500) delivers Seiko In-House Automatic technology in the tier below the Hamilton Ventura Quartz ($500–$1,000). The 5 Sports 5KX measures 42.5mm and is rated 100m (10 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 5 Sports 5KX |
|---|---|---|
| Price | $500–$1,000 | $250–$500 |
| Case Size | 32.3mm x 50.3mm (Shield) | 42.5mm |
| Movement | Quartz F06.111 | Automatic Caliber 4R36 |
| Caliber Type | Swiss High-Accuracy Quartz | Seiko In-House Automatic |
| Power Reserve | 60 Months (Battery) | 41 Hours |
| Water Resistance | 50m (5 ATM) | 100m (10 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 5 Sports 5KX offers Stainless Steel construction at 42.5mm with Hardlex Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Quartz F06.111 vs Automatic Caliber 4R36
The Ventura Quartz runs the Quartz F06.111 (Swiss High-Accuracy Quartz, 60 Months (Battery) power reserve) at 32,768 Hz (Quartz) frequency. The 5 Sports 5KX uses the Automatic Caliber 4R36 (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 42.5mm — different wrist presence
At 32.3mm x 50.3mm (Shield), the Ventura Quartz wears more compactly on smaller wrists compared to the 5 Sports 5KX at 42.5mm. Water resistance differs: 50m (5 ATM) vs 100m (10 ATM).
Value & Cost of Ownership
Seiko sits in the lower tier
The Hamilton Ventura Quartz sits at $500–$1,000 and the Seiko 5 Sports 5KX 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 5 Sports 5KX. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 100m (10 ATM)
The Ventura Quartz is rated to 50m (5 ATM) while the 5 Sports 5KX handles 100m (10 ATM). The 5 Sports 5KX offers superior water resistance.
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
5 Sports 5KX
Choose the Seiko 5 Sports 5KX if you value Seiko In-House Automatic technology, Made in Japan heritage, and 42.5mm proportions. At $250–$500, the Automatic Caliber 4R36 with 41 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Hamilton Ventura Quartz and Seiko 5 Sports 5KX 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.

