Head-to-Head Comparison

Updated

Seiko Presage SSA425 Open Heart vs Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial)

Two timepieces compared — $250–$500 vs $10,000–$25,000

Quick Verdict

The Seiko Presage SSA425 Open Heart ($250–$500) offers Seiko In-House Automatic precision in the tier below the Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) ($10,000–$25,000). The Presage SSA425 Open Heart measures 40.5mm and is rated 50m (5 ATM). The Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) counters with Swiss Made craftsmanship and 100m (10 ATM) water resistance. Both are exceptional timepieces for their respective tiers.

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Seiko Presage SSA425 Open Heart

Seiko

Presage SSA425 Open Heart

$250–$500

Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial)

Rolex

Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial)

$10,000–$25,000

Specifications Compared

FeatureSeiko Presage SSA425 Open HeartRolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial)
Price$250–$500$10,000–$25,000
Case Size40.5mm34mm
MovementAutomatic Caliber 4R38Automatic, Rolex calibre 3135, quickset date
Caliber TypeSeiko In-House AutomaticRolex 3135, chronometer certified
Power Reserve41 HoursAbout 48 hours
Water Resistance50m (5 ATM)100m (10 ATM)
CrystalHardlex CrystalSapphire Crystal, Cyclops
Case MaterialStainless Steel18k yellow gold, fluted bezel
OriginMade in JapanSwiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Seiko's design language vs Rolex's approach

The Seiko Presage SSA425 Open Heart features a Stainless Steel case at 40.5mm with Hardlex Crystal protection. The Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) offers 18k yellow gold, fluted bezel construction at 34mm with Sapphire Crystal, Cyclops. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Rolex

Automatic Caliber 4R38 vs Automatic, Rolex calibre 3135, quickset date

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 Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) uses the Automatic, Rolex calibre 3135, quickset date (Rolex 3135, chronometer certified, About 48 hours reserve) at standard. The Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) offers a longer power reserve.

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Wearability & Fit

Edge: Rolex

40.5mm vs 34mm — different wrist presence

At 40.5mm, the Presage SSA425 Open Heart has a bolder wrist presence compared to the Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) at 34mm. Water resistance differs: 50m (5 ATM) vs 100m (10 ATM).

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Value & Cost of Ownership

Edge: Seiko

Seiko sits in the lower tier

The Seiko Presage SSA425 Open Heart sits at $250–$500 and the Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) at $10,000–$25,000. On the specs that outlast any price: the Presage SSA425 Open Heart uses Hardlex Crystal with 41 Hours, against Sapphire Crystal, Cyclops and About 48 hours on the Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial). Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Rolex

50m (5 ATM) vs 100m (10 ATM)

The Presage SSA425 Open Heart is rated to 50m (5 ATM) while the Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) handles 100m (10 ATM). The Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) offers superior water resistance.

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.

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Rolex

Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial)

Choose the Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) if you value Rolex 3135, chronometer certified technology, Swiss Made heritage, and 34mm proportions. At $10,000–$25,000, the Automatic, Rolex calibre 3135, quickset date with About 48 hours power reserve makes it a compelling choice.

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The Bottom Line

The Seiko Presage SSA425 Open Heart and Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) represent two distinct approaches to the timepiece category — the Seiko bringing Made in Japan tradition while Rolex delivers Swiss Made engineering.

Frequently Asked Questions

For water, the Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) is rated 100 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Seiko Presage SSA425 Open Heart sits a band lower ($250–$500 against $10,000–$25,000), so it is the cheaper way into the category. Neither is better at everything; the spec table above shows movement, case size, water resistance and crystal side by side so you can weigh what matters to you. We do not test units, so this is the makers' data, not a bench result.
The Seiko Presage SSA425 Open Heart offers better upfront value, sitting a tier lower at $250–$500. However, the Rolex Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Presage SSA425 Open Heart at 40.5mm with 50m (5 ATM) water resistance handles everyday situations. The Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) at 34mm with 100m (10 ATM) is similarly capable. The Presage SSA425 Open Heart uses Hardlex Crystal while the Oyster Perpetual Date 15238 (18k yellow gold, 34mm, champagne dial) uses Sapphire Crystal, Cyclops.

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.