Head-to-Head Comparison

Orient Kamasu Automatic Diver vs Seiko Prospex 62MAS Modern Re-interpretation

Two divers compared — $250–$500 vs $1,000–$1,500

Quick Verdict

The Orient Kamasu Automatic Diver ($250–$500) offers Orient In-House Automatic precision in the tier below the Seiko Prospex 62MAS Modern Re-interpretation ($1,000–$1,500). The Kamasu Automatic Diver measures 41.8mm and is rated 200m (20 ATM). The Prospex 62MAS Modern Re-interpretation counters with Made in Japan craftsmanship and 200m (20 ATM) water resistance. Both are exceptional divers for their respective tiers.

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Orient Kamasu Automatic Diver

Orient

Kamasu Automatic Diver

$250–$500

Seiko Prospex 62MAS Modern Re-interpretation

Seiko

Prospex 62MAS Modern Re-interpretation

$1,000–$1,500

Specifications Compared

FeatureOrient Kamasu Automatic DiverSeiko Prospex 62MAS Modern Re-interpretation
Price$250–$500$1,000–$1,500
Case Size41.8mm40.5mm
MovementAutomatic Caliber F6922Automatic 6R35
Caliber TypeOrient In-House AutomaticSeiko In-House Automatic
Power Reserve40 Hours70 Hours
Water Resistance200m (20 ATM)200m (20 ATM)
CrystalSapphire CrystalSapphire
Case MaterialStainless SteelStainless Steel with Super-Hard Coating
OriginMade in JapanMade in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Orient's design language vs Seiko's approach

The Orient Kamasu Automatic Diver features a Stainless Steel case at 41.8mm with Sapphire Crystal protection. The Seiko Prospex 62MAS Modern Re-interpretation offers Stainless Steel with Super-Hard Coating construction at 40.5mm with Sapphire. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Seiko

Automatic Caliber F6922 vs Automatic 6R35

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 Prospex 62MAS Modern Re-interpretation uses the Automatic 6R35 (Seiko In-House Automatic, 70 Hours reserve) at 21,600 vph (3 Hz). The Prospex 62MAS Modern Re-interpretation offers a longer power reserve.

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Wearability & Fit

Edge: Seiko

41.8mm vs 40.5mm — different wrist presence

At 41.8mm, the Kamasu Automatic Diver has a bolder wrist presence compared to the Prospex 62MAS Modern Re-interpretation at 40.5mm. Water resistance differs: 200m (20 ATM) vs 200m (20 ATM).

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Value & Cost of Ownership

Edge: Orient

Orient sits in the lower tier

The Orient Kamasu Automatic Diver sits at $250–$500 and the Seiko Prospex 62MAS Modern Re-interpretation at $1,000–$1,500. On the specs that outlast any price: the Kamasu Automatic Diver uses Sapphire Crystal with 40 Hours, against Sapphire and 70 Hours on the Prospex 62MAS Modern Re-interpretation. 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 Prospex 62MAS Modern Re-interpretation 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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Seiko

Prospex 62MAS Modern Re-interpretation

Choose the Seiko Prospex 62MAS Modern Re-interpretation if you value Seiko In-House Automatic technology, Made in Japan heritage, and 40.5mm proportions. At $1,000–$1,500, the Automatic 6R35 with 70 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Orient Kamasu Automatic Diver and Seiko Prospex 62MAS Modern Re-interpretation represent two distinct approaches to the diver category — the Orient bringing Made in Japan tradition while Seiko 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 Seiko Prospex 62MAS Modern Re-interpretation ($1,000–$1,500) features Automatic 6R35 with 200m (20 ATM) water resistance. Choose based on your priorities: Made in Japan craftsmanship vs Made in Japan engineering.
The Orient Kamasu Automatic Diver offers better upfront value, sitting a tier lower at $250–$500. However, the Seiko Prospex 62MAS Modern Re-interpretation may justify its premium with superior finishing, heritage, or resale value.
Both are suitable for daily wear. The Kamasu Automatic Diver at 41.8mm with 200m (20 ATM) water resistance handles everyday situations. The Prospex 62MAS Modern Re-interpretation at 40.5mm with 200m (20 ATM) is similarly capable. The Kamasu Automatic Diver uses Sapphire Crystal while the Prospex 62MAS Modern Re-interpretation uses Sapphire.

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.