Head-to-Head Comparison

Updated September 5, 2026

OLEVS Moon Phase Dress Watch vs Seiko Presage SSA425 Open Heart

OLEVS's dress watch meets Seiko's timepiece

Quick Verdict

The OLEVS Moon Phase Dress Watch ($100–$150) offers Quartz (Battery) precision in the tier below the Seiko Presage SSA425 Open Heart ($250–$500). The Moon Phase Dress Watch measures mid-size and is rated for daily wear. The Presage SSA425 Open Heart counters with Made in Japan craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective tiers.

OLEVSMoon Phase Dress Watch$100–$150 Check price SeikoPresage SSA425 Open Heart$250–$500 Check price

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OLEVS

Moon Phase Dress Watch

$100–$150

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Seiko

Presage SSA425 Open Heart

$250–$500

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Specifications Compared

Feature	OLEVS Moon Phase Dress Watch	Seiko Presage SSA425 Open Heart
Price	$100–$150	$250–$500
Case Size	—	40.5mm
Movement	Quartz	Automatic Caliber 4R38
Caliber Type	Quartz (Battery)	Seiko In-House Automatic
Power Reserve	—	41 Hours
Water Resistance	—	50m (5 ATM)
Crystal	—	Hardlex Crystal
Case Material	Stainless Steel	Stainless Steel
Origin	OLEVS	Made in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

OLEVS's design language vs Seiko's approach

The OLEVS Moon Phase Dress Watch features a Stainless Steel case at mid-size with 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.

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Movement & Performance

Edge: Seiko

Quartz vs Automatic Caliber 4R38

The Moon Phase Dress Watch runs the Quartz (Quartz (Battery), standard 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 Presage SSA425 Open Heart offers a longer power reserve.

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Wearability & Fit

Edge: OLEVS

Mid-size vs 40.5mm — different wrist presence

At 40mm, the Moon Phase Dress Watch wears more compactly on smaller wrists compared to the Presage SSA425 Open Heart at 40.5mm. Water resistance differs: 50m vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: OLEVS

OLEVS sits in the lower tier

The OLEVS Moon Phase Dress Watch sits at $100–$150 and the Seiko Presage SSA425 Open Heart at $250–$500. On the specs that outlast any price: the Moon Phase Dress Watch uses a hardened crystal with a standard reserve, against Hardlex Crystal and 41 Hours on the Presage SSA425 Open Heart. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Seiko

50m vs 50m (5 ATM)

The Moon Phase Dress Watch is rated to 50m while the Presage SSA425 Open Heart handles 50m (5 ATM). The Presage SSA425 Open Heart offers superior water resistance.

Our Verdict

OLEVS

Moon Phase Dress Watch

Choose the OLEVS Moon Phase Dress Watch if you prioritize Quartz (Battery) engineering, OLEVS craftsmanship, and reliable water resistance. At $100–$150, it delivers Quartz with solid power reserve.

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Seiko

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.

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The Bottom Line

The OLEVS Moon Phase Dress Watch and Seiko Presage SSA425 Open Heart represent two distinct approaches to fine watchmaking — the OLEVS bringing OLEVS tradition while Seiko delivers Made in Japan engineering.

Frequently Asked Questions

The Seiko Presage SSA425 Open Heart is the better buy if you want a mechanical movement; the OLEVS Moon Phase Dress Watch is the better buy if you want quartz accuracy with no servicing. On price, the OLEVS Moon Phase Dress Watch sits a band lower ($100–$150 against $250–$500), 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 OLEVS Moon Phase Dress Watch offers better upfront value, sitting a tier lower at $100–$150. However, the Seiko Presage SSA425 Open Heart may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Moon Phase Dress Watch at 40mm with 50m water resistance handles everyday situations. The Presage SSA425 Open Heart at 40.5mm with 50m (5 ATM) is similarly capable. Check each model's crystal material if scratch resistance matters to you.

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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.