Seiko Presage SSA425 Open Heart vs Timex Q Timex Reissue
Seiko's timepiece meets Timex's diver
Quick Verdict
The Timex Q Timex Reissue ($100–$150) delivers Timex Quartz technology in the tier below the Seiko Presage SSA425 Open Heart ($250–$500). The Q Timex Reissue measures 38mm and is rated 50m (5 ATM). The Presage SSA425 Open Heart justifies its premium with Made in Japan heritage and Automatic Caliber 4R38. Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Seiko Presage SSA425 Open Heart | Timex Q Timex Reissue |
|---|---|---|
| Price | $250–$500 | $100–$150 |
| Case Size | 40.5mm | 38mm |
| Movement | Automatic Caliber 4R38 | Quartz |
| Caliber Type | Seiko In-House Automatic | Timex Quartz |
| Power Reserve | 41 Hours | — |
| Water Resistance | 50m (5 ATM) | 50m (5 ATM) |
| Crystal | Hardlex Crystal | Acrylic Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Assembled in Philippines |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Timex's approach
The Seiko Presage SSA425 Open Heart features a Stainless Steel case at 40.5mm with Hardlex Crystal protection. The Timex Q Timex Reissue offers Stainless Steel construction at 38mm with Acrylic Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Caliber 4R38 vs Quartz
The Presage SSA425 Open Heart runs the Automatic Caliber 4R38 (Seiko In-House Automatic, 41 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Q Timex Reissue uses the Quartz (Timex Quartz, standard reserve) at standard. The Presage SSA425 Open Heart edges ahead on power reserve.
Wearability & Fit
40.5mm vs 38mm — different wrist presence
At 40.5mm, the Presage SSA425 Open Heart has a bolder wrist presence compared to the Q Timex Reissue at 38mm. Water resistance differs: 50m (5 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Timex sits in the lower tier
The Seiko Presage SSA425 Open Heart sits at $250–$500 and the Timex Q Timex Reissue at $100–$150. On the specs that outlast any price: the Presage SSA425 Open Heart uses Hardlex Crystal with 41 Hours, against Acrylic Crystal and a standard reserve on the Q Timex Reissue. Service intervals are typically 5-7 years for both.
Water Resistance
50m (5 ATM) vs 50m (5 ATM)
The Presage SSA425 Open Heart is rated to 50m (5 ATM) while the Q Timex Reissue handles 50m (5 ATM). Both offer identical water resistance ratings.
Our Verdict
Seiko
Presage SSA425 Open Heart
Choose the Seiko Presage SSA425 Open Heart if you prioritize Seiko In-House Automatic engineering, Made in Japan craftsmanship, and 50m (5 ATM) water resistance. At $250–$500, it delivers Automatic Caliber 4R38 with 41 Hours power reserve.
Check Price on AmazonTimex
Q Timex Reissue
Choose the Timex Q Timex Reissue if you value Timex Quartz technology, Assembled in Philippines heritage, and 38mm proportions. At $100–$150, the Quartz with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Seiko Presage SSA425 Open Heart and Timex Q Timex Reissue represent two distinct approaches to fine watchmaking — the Seiko bringing Made in Japan tradition while Timex delivers Assembled in Philippines 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.

