Head-to-Head Comparison

Longines HydroConquest Automatic vs OLEVS Moon Phase Dress Watch

Longines's diver meets OLEVS's dress watch

Quick Verdict

The OLEVS Moon Phase Dress Watch ($100–$150) delivers Quartz (Battery) technology in the tier below the Longines HydroConquest Automatic ($1,500–$2,500). The Moon Phase Dress Watch measures mid-size and is rated for daily wear. The HydroConquest Automatic justifies its premium with Swiss Made heritage and Automatic L888.5. Both represent excellent choices in the luxury watch category.

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Longines HydroConquest Automatic

Longines

HydroConquest Automatic

$1,500–$2,500

OLEVS Moon Phase Dress Watch

OLEVS

Moon Phase Dress Watch

$100–$150

Specifications Compared

FeatureLongines HydroConquest AutomaticOLEVS Moon Phase Dress Watch
Price$1,500–$2,500$100–$150
Case Size41mm
MovementAutomatic L888.5Quartz
Caliber TypeETA-Based Automatic with Silicon Balance SpringQuartz (Battery)
Power Reserve72 Hours
Water Resistance300m (30 ATM)
CrystalSapphire with Anti-Reflective Coating
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeOLEVS

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Longines's design language vs OLEVS's approach

The Longines HydroConquest Automatic features a Stainless Steel case at 41mm with Sapphire with Anti-Reflective Coating protection. The OLEVS Moon Phase Dress Watch offers Stainless Steel construction at mid-size with crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Longines

Automatic L888.5 vs Quartz

The HydroConquest Automatic runs the Automatic L888.5 (ETA-Based Automatic with Silicon Balance Spring, 72 Hours power reserve) at 25,200 vph (3.5 Hz) frequency. The Moon Phase Dress Watch uses the Quartz (Quartz (Battery), standard reserve) at standard. The HydroConquest Automatic edges ahead on power reserve.

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Wearability & Fit

Edge: OLEVS

41mm vs mid-size — different wrist presence

At 41mm, the HydroConquest Automatic has a bolder wrist presence compared to the Moon Phase Dress Watch at 40mm. Water resistance differs: 300m (30 ATM) vs 50m.

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Value & Cost of Ownership

Edge: OLEVS

OLEVS sits in the lower tier

The Longines HydroConquest Automatic sits at $1,500–$2,500 and the OLEVS Moon Phase Dress Watch at $100–$150. On the specs that outlast any price: the HydroConquest Automatic uses Sapphire with Anti-Reflective Coating with 72 Hours, against a hardened crystal and a standard reserve on the Moon Phase Dress Watch. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Longines

300m (30 ATM) vs 50m

The HydroConquest Automatic is rated to 300m (30 ATM) while the Moon Phase Dress Watch handles 50m. The HydroConquest Automatic is better suited for water activities.

Our Verdict

Longines

HydroConquest Automatic

Choose the Longines HydroConquest Automatic if you prioritize ETA-Based Automatic with Silicon Balance Spring engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $1,500–$2,500, it delivers Automatic L888.5 with 72 Hours power reserve.

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OLEVS

Moon Phase Dress Watch

Choose the OLEVS Moon Phase Dress Watch if you value Quartz (Battery) technology, OLEVS heritage, and comfortable proportions. At $100–$150, the Quartz with ample power reserve makes it a compelling choice.

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The Bottom Line

The Longines HydroConquest Automatic and OLEVS Moon Phase Dress Watch represent two distinct approaches to fine watchmaking — the Longines bringing Swiss Made tradition while OLEVS delivers OLEVS engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Longines HydroConquest Automatic ($1,500–$2,500) offers Automatic L888.5 with 72 Hours power reserve, while the OLEVS Moon Phase Dress Watch ($100–$150) features Quartz with solid water resistance. Choose based on your priorities: Swiss Made craftsmanship vs OLEVS engineering.
The OLEVS Moon Phase Dress Watch offers better upfront value, sitting a tier lower at $100–$150. However, the Longines HydroConquest Automatic may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The HydroConquest Automatic at 41mm with 300m (30 ATM) water resistance handles everyday situations. The Moon Phase Dress Watch at 40mm with 50m is similarly capable. Check each model's crystal material if scratch resistance matters to you.

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.