Head-to-Head Comparison

Orient Kamasu Automatic Diver vs Orient Mako 40 Green

Two divers compared — $250–$500 vs $250–$500

Quick Verdict

The Orient Kamasu Automatic Diver ($250–$500) and Orient Mako 40 Green ($250–$500) are closely matched divers at similar price points. The Kamasu Automatic Diver emphasizes Orient In-House Automatic engineering while the Mako 40 Green focuses on Made in Japan craftsmanship.

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Orient Kamasu Automatic Diver

Orient

Kamasu Automatic Diver

$250–$500

Orient Mako 40 Green

Orient

Mako 40 Green

$250–$500

Specifications Compared

FeatureOrient Kamasu Automatic DiverOrient Mako 40 Green
Price$250–$500$250–$500
Case Size41.8mm40mm
MovementAutomatic Caliber F6922Automatic Caliber F6722
Caliber TypeOrient In-House AutomaticOrient In-House Automatic (Hacking, Hand-Winding)
Power Reserve40 Hours40 Hours
Water Resistance200m (20 ATM)200m (20 ATM)
CrystalSapphire CrystalSapphire Crystal
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 Mako 40 Green offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Draw

Automatic Caliber F6922 vs Automatic Caliber F6722

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 Mako 40 Green uses the Automatic Caliber F6722 (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 40mm — different wrist presence

At 41.8mm, the Kamasu Automatic Diver has a bolder wrist presence compared to the Mako 40 Green at 40mm. Water resistance differs: 200m (20 ATM) vs 200m (20 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 Mako 40 Green at $250–$500. On the specs that outlast any price: the Kamasu Automatic Diver uses Sapphire Crystal with 40 Hours, against Sapphire Crystal and 40 Hours on the Mako 40 Green. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Draw

200m (20 ATM) vs 200m (20 ATM)

The Kamasu Automatic Diver is rated to 200m (20 ATM) while the Mako 40 Green handles 200m (20 ATM). Both offer identical water resistance ratings.

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

Mako 40 Green

Choose the Orient Mako 40 Green if you value Orient In-House Automatic (Hacking, Hand-Winding) technology, Made in Japan heritage, and 40mm proportions. At $250–$500, the Automatic Caliber F6722 with 40 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Orient Kamasu Automatic Diver and Orient Mako 40 Green represent two distinct approaches to the diver category — 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 Mako 40 Green ($250–$500) features Automatic Caliber F6722 with 200m (20 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 Mako 40 Green 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 Mako 40 Green at 40mm with 200m (20 ATM) is similarly capable. Both use Sapphire Crystal, which resists scratches well.

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.