Seiko Presage Cocktail Time SRPE15 vs Seiko Presage SSA425 Open Heart
Two timepieces compared — $250–$500 vs $250–$500
Quick Verdict
The Seiko Presage Cocktail Time SRPE15 ($250–$500) and Seiko Presage SSA425 Open Heart ($250–$500) are closely matched timepieces at similar price points. The Presage Cocktail Time SRPE15 emphasizes Seiko In-House Automatic engineering while the Presage SSA425 Open Heart focuses on Made in Japan craftsmanship.
Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.
Specifications Compared
| Feature | Seiko Presage Cocktail Time SRPE15 | Seiko Presage SSA425 Open Heart |
|---|---|---|
| Price | $250–$500 | $250–$500 |
| Case Size | 40.5mm | 40.5mm |
| Movement | Automatic Caliber 4R35 | Automatic Caliber 4R38 |
| Caliber Type | Seiko In-House Automatic | Seiko In-House Automatic |
| Power Reserve | 41 Hours | 41 Hours |
| Water Resistance | 50m (5 ATM) | 50m (5 ATM) |
| Crystal | Hardlex Crystal | Hardlex Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Made in Japan | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Seiko's design language vs Seiko's approach
The Seiko Presage Cocktail Time SRPE15 features a Stainless Steel case at 40.5mm with Hardlex 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 Caliber 4R35 vs Automatic Caliber 4R38
The Presage Cocktail Time SRPE15 runs the Automatic Caliber 4R35 (Seiko In-House Automatic, 41 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Presage SSA425 Open Heart uses the Automatic Caliber 4R38 (Seiko In-House Automatic, 41 Hours reserve) at 21,600 vph (3 Hz). Power reserves are closely matched.
Wearability & Fit
40.5mm vs 40.5mm — different wrist presence
At 40.5mm, the Presage Cocktail Time SRPE15 is similarly sized compared to the Presage SSA425 Open Heart at 40.5mm. Water resistance differs: 50m (5 ATM) vs 50m (5 ATM).
Value & Cost of Ownership
Same tier — different value propositions
The Seiko Presage Cocktail Time SRPE15 sits at $250–$500 and the Seiko Presage SSA425 Open Heart at $250–$500. On the specs that outlast any price: the Presage Cocktail Time SRPE15 uses Hardlex Crystal with 41 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 Presage Cocktail Time SRPE15 is rated to 50m (5 ATM) while the Presage SSA425 Open Heart handles 50m (5 ATM). Both offer identical water resistance ratings.
Our Verdict
Seiko
Presage Cocktail Time SRPE15
Choose the Seiko Presage Cocktail Time SRPE15 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 4R35 with 41 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 Seiko Presage Cocktail Time SRPE15 and Seiko Presage SSA425 Open Heart represent two distinct approaches to the timepiece category — the Seiko bringing Made in Japan tradition while Seiko delivers Made in Japan engineering.
Frequently Asked Questions
More Comparisons
Tag Heuer Carrera Chronograph vs Seiko Presage Cocktail Time SRPE15
Tag Heuer's chronograph meets Seiko's timepiece
Tag Heuer Carrera Chronograph vs Seiko Presage SSA425 Open Heart
Tag Heuer's chronograph meets Seiko's timepiece
Tissot PRX Powermatic 80 vs Seiko Presage Cocktail Time SRPE15
Two timepieces compared — $500–$1,000 vs $250–$500
Explore These Watches
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.