Head-to-Head Comparison

Orient Kamasu Automatic Diver vs Orient Sun & Moon

Orient's diver meets Orient's dress watch

Quick Verdict

The Orient Kamasu Automatic Diver ($250–$500) and Orient Sun & Moon ($250–$500) are closely matched timepieces at similar price points. The Kamasu Automatic Diver emphasizes Orient In-House Automatic engineering while the Sun & Moon focuses on Made in Japan craftsmanship.

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Orient Kamasu Automatic Diver

Orient

Kamasu Automatic Diver

$250–$500

Orient Sun & Moon

Orient

Sun & Moon

$250–$500

Specifications Compared

FeatureOrient Kamasu Automatic DiverOrient Sun & Moon
Price$250–$500$250–$500
Case Size41.8mm41.5mm
MovementAutomatic Caliber F6922Automatic Caliber F6B24
Caliber TypeOrient In-House AutomaticOrient In-House Automatic (Hacking, Hand-Winding)
Power Reserve40 Hours40 Hours
Water Resistance200m (20 ATM)50m (5 ATM)
CrystalSapphire CrystalMineral Glass
Case MaterialStainless SteelStainless Steel
OriginMade in JapanMade in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Orient's design language vs Orient's approach

The Orient Kamasu Automatic Diver features a Stainless Steel case at 41.8mm with Sapphire Crystal protection. The Orient Sun & Moon offers Stainless Steel construction at 41.5mm with Mineral Glass. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Draw

Automatic Caliber F6922 vs Automatic Caliber F6B24

The Kamasu Automatic Diver runs the Automatic Caliber F6922 (Orient In-House Automatic, 40 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Sun & Moon uses the Automatic Caliber F6B24 (Orient In-House Automatic (Hacking, Hand-Winding), 40 Hours reserve) at 21,600 vph (3 Hz). Power reserves are closely matched.

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Wearability & Fit

Edge: Orient

41.8mm vs 41.5mm — different wrist presence

At 41.8mm, the Kamasu Automatic Diver has a bolder wrist presence compared to the Sun & Moon at 41.5mm. Water resistance differs: 200m (20 ATM) vs 50m (5 ATM).

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Value & Cost of Ownership

Edge: Draw

Same tier — different value propositions

The Orient Kamasu Automatic Diver sits at $250–$500 and the Orient Sun & Moon at $250–$500. On the specs that outlast any price: the Kamasu Automatic Diver uses Sapphire Crystal with 40 Hours, against Mineral Glass and 40 Hours on the Sun & Moon. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Orient

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

The Kamasu Automatic Diver is rated to 200m (20 ATM) while the Sun & Moon handles 50m (5 ATM). The Kamasu Automatic Diver is better suited for water activities.

Our Verdict

Orient

Kamasu Automatic Diver

Choose the Orient Kamasu Automatic Diver if you prioritize Orient In-House Automatic engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At $250–$500, it delivers Automatic Caliber F6922 with 40 Hours power reserve.

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Orient

Sun & Moon

Choose the Orient Sun & Moon if you value Orient In-House Automatic (Hacking, Hand-Winding) technology, Made in Japan heritage, and 41.5mm proportions. At $250–$500, the Automatic Caliber F6B24 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Orient Kamasu Automatic Diver and Orient Sun & Moon represent two distinct approaches to fine watchmaking — the Orient bringing Made in Japan tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Orient Kamasu Automatic Diver ($250–$500) offers Automatic Caliber F6922 with 40 Hours power reserve, while the Orient Sun & Moon ($250–$500) features Automatic Caliber F6B24 with 50m (5 ATM) water resistance. Choose based on your priorities: Made in Japan craftsmanship vs Made in Japan engineering.
Both are priced similarly, making this a question of preference rather than value. The Kamasu Automatic Diver emphasizes Orient In-House Automatic technology while the Sun & Moon prioritizes Orient In-House Automatic (Hacking, Hand-Winding) precision.
Both are suitable for daily wear. The Kamasu Automatic Diver at 41.8mm with 200m (20 ATM) water resistance handles everyday situations. The Sun & Moon at 41.5mm with 50m (5 ATM) is similarly capable. The Kamasu Automatic Diver uses Sapphire Crystal while the Sun & Moon uses Mineral Glass. Sapphire resists scratches noticeably better than mineral glass.

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.