Head-to-Head Comparison

Updated September 5, 2026

Frederique Constant Classic Quartz Moonphase vs Orient Kamasu Automatic Diver

Frederique Constant's dress watch meets Orient's diver

Quick Verdict

The Orient Kamasu Automatic Diver ($250–$500) delivers Orient In-House Automatic technology in the tier below the Frederique Constant Classic Quartz Moonphase ($1,000–$1,500). The Kamasu Automatic Diver measures 41.8mm and is rated 200m (20 ATM). The Classic Quartz Moonphase justifies its premium with Swiss Made heritage and Quartz FC-206. Both represent excellent choices in the luxury watch category.

Frederique ConstantClassic Quartz Moonphase$1,000–$1,500 Check price View the dossier

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Frederique Constant

Classic Quartz Moonphase

$1,000–$1,500

Check Price Full Review

Orient

Kamasu Automatic Diver

$250–$500

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Specifications Compared

Feature	Frederique Constant Classic Quartz Moonphase	Orient Kamasu Automatic Diver
Price	$1,000–$1,500	$250–$500
Case Size	40mm	41.8mm
Movement	Quartz FC-206	Automatic Caliber F6922
Caliber Type	Swiss Quartz	Orient In-House Automatic
Power Reserve	Battery	40 Hours
Water Resistance	50m (5 ATM)	200m (20 ATM)
Crystal	Anti-Reflective Sapphire Crystal	Sapphire Crystal
Case Material	Stainless Steel	Stainless Steel
Origin	Swiss Made	Made in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Frederique Constant's design language vs Orient's approach

The Frederique Constant Classic Quartz Moonphase features a Stainless Steel case at 40mm with Anti-Reflective Sapphire Crystal protection. The Orient Kamasu Automatic Diver offers Stainless Steel construction at 41.8mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Orient

Quartz FC-206 vs Automatic Caliber F6922

The Classic Quartz Moonphase runs the Quartz FC-206 (Swiss Quartz, Battery power reserve) at standard frequency. The Kamasu Automatic Diver uses the Automatic Caliber F6922 (Orient In-House Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Kamasu Automatic Diver offers a longer power reserve.

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Wearability & Fit

Edge: Frederique Constant

40mm vs 41.8mm — different wrist presence

At 40mm, the Classic Quartz Moonphase wears more compactly on smaller wrists compared to the Kamasu Automatic Diver at 41.8mm. Water resistance differs: 50m (5 ATM) vs 200m (20 ATM).

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Value & Cost of Ownership

Edge: Orient

Orient sits in the lower tier

The Frederique Constant Classic Quartz Moonphase sits at $1,000–$1,500 and the Orient Kamasu Automatic Diver at $250–$500. On the specs that outlast any price: the Classic Quartz Moonphase uses Anti-Reflective Sapphire Crystal with Battery, against Sapphire Crystal and 40 Hours on the Kamasu Automatic Diver. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Orient

50m (5 ATM) vs 200m (20 ATM)

The Classic Quartz Moonphase is rated to 50m (5 ATM) while the Kamasu Automatic Diver handles 200m (20 ATM). The Kamasu Automatic Diver offers superior water resistance.

Our Verdict

Frederique Constant

Classic Quartz Moonphase

Choose the Frederique Constant Classic Quartz Moonphase if you prioritize Swiss Quartz engineering, Swiss Made craftsmanship, and 50m (5 ATM) water resistance. At $1,000–$1,500, it delivers Quartz FC-206 with Battery power reserve.

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Orient

Kamasu Automatic Diver

Choose the Orient Kamasu Automatic Diver if you value Orient In-House Automatic technology, Made in Japan heritage, and 41.8mm proportions. At $250–$500, the Automatic Caliber F6922 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Frederique Constant Classic Quartz Moonphase and Orient Kamasu Automatic Diver represent two distinct approaches to fine watchmaking — the Frederique Constant bringing Swiss Made tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

The Orient Kamasu Automatic Diver is the better buy if you want a mechanical movement; the Frederique Constant Classic Quartz Moonphase is the better buy if you want quartz accuracy with no servicing. For water, the Orient Kamasu Automatic Diver is rated 200 m against 50 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Orient Kamasu Automatic Diver sits a band lower ($250–$500 against $1,000–$1,500), 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 Orient Kamasu Automatic Diver offers better upfront value, sitting a tier lower at $250–$500. However, the Frederique Constant Classic Quartz Moonphase may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Classic Quartz Moonphase at 40mm with 50m (5 ATM) water resistance handles everyday situations. The Kamasu Automatic Diver at 41.8mm with 200m (20 ATM) is similarly capable. The Classic Quartz Moonphase uses Anti-Reflective Sapphire Crystal while the Kamasu Automatic Diver uses Sapphire Crystal.

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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.