Updated
Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) vs Seiko Presage SSA425 Open Heart
Two timepieces compared — $10,000–$25,000 vs $250–$500
Quick Verdict
The Seiko Presage SSA425 Open Heart ($250–$500) delivers Seiko In-House Automatic technology in the tier below the Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) ($10,000–$25,000). The Presage SSA425 Open Heart measures 40.5mm and is rated 50m (5 ATM). The Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) justifies its premium with Swiss Made heritage and Automatic. Both represent excellent choices in the timepiece category.
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Chopard
Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap)
$10,000–$25,000
Specifications Compared
| Feature | Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) | Seiko Presage SSA425 Open Heart |
|---|---|---|
| Price | $10,000–$25,000 | $250–$500 |
| Case Size | 36mm | 40.5mm |
| Movement | Automatic | Automatic Caliber 4R38 |
| Caliber Type | Automatic | Seiko In-House Automatic |
| Power Reserve | About 42 hours | 41 Hours |
| Water Resistance | 50m (5 ATM) | 50m (5 ATM) |
| Crystal | Sapphire Crystal | Hardlex Crystal |
| Case Material | 18k rose gold, amethyst cabochons on the lugs and crown | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Chopard's design language vs Seiko's approach
The Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) features a 18k rose gold, amethyst cabochons on the lugs and crown case at 36mm with Sapphire Crystal 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
Automatic vs Automatic Caliber 4R38
The Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) runs the Automatic (Automatic, About 42 hours power reserve) at standard 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 Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) edges ahead on power reserve.
Wearability & Fit
36mm vs 40.5mm — different wrist presence
At 36mm, the Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) 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 Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) sits at $10,000–$25,000 and the Seiko Presage SSA425 Open Heart at $250–$500. On the specs that outlast any price: the Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) uses Sapphire Crystal with About 42 hours, 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 Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) is rated to 50m (5 ATM) while the Presage SSA425 Open Heart handles 50m (5 ATM). Both offer identical water resistance ratings.
Our Verdict
Chopard
Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap)
Choose the Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) if you prioritize Automatic engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $10,000–$25,000, it delivers Automatic with About 42 hours 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 Chopard Imperiale 384221-5009 (18k rose gold, brown dial, brown alligator strap) and Seiko Presage SSA425 Open Heart represent two distinct approaches to the timepiece category — the Chopard bringing Swiss Made 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.