Head-to-Head Comparison

Updated September 5, 2026

Blancpain Fifty Fathoms 45mm (titanium, blue dial) vs Orient Kamasu Automatic Diver

Two divers compared — $10,000–$25,000 vs $250–$500

Quick Verdict

The Orient Kamasu Automatic Diver ($250–$500) delivers Orient In-House Automatic technology in the tier below the Blancpain Fifty Fathoms 45mm (titanium, blue dial) ($10,000–$25,000). The Kamasu Automatic Diver measures 41.8mm and is rated 200m (20 ATM). The Fifty Fathoms 45mm (titanium, blue dial) justifies its premium with Swiss Made heritage and Automatic, Blancpain Calibre 1315. Both represent excellent choices in the diver category.

BlancpainFifty Fathoms 45mm (titanium, blue dial)$10,000–$25,000 Check price View the dossier

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Blancpain

Fifty Fathoms 45mm (titanium, blue dial)

$10,000–$25,000

Check Price Full Review

Orient

Kamasu Automatic Diver

$250–$500

View the dossier Full Review

Specifications Compared

Feature	Blancpain Fifty Fathoms 45mm (titanium, blue dial)	Orient Kamasu Automatic Diver
Price	$10,000–$25,000	$250–$500
Case Size	45mm	41.8mm
Movement	Automatic, Blancpain Calibre 1315	Automatic Caliber F6922
Caliber Type	Blancpain 1315, three barrels, silicon balance spring	Orient In-House Automatic
Power Reserve	About 120 hours (five days)	40 Hours
Water Resistance	300m (30 ATM)	200m (20 ATM)
Crystal	Sapphire Crystal, sapphire bezel insert	Sapphire Crystal
Case Material	Titanium	Stainless Steel
Origin	Swiss Made	Made in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Blancpain's design language vs Orient's approach

The Blancpain Fifty Fathoms 45mm (titanium, blue dial) features a Titanium case at 45mm with Sapphire Crystal, sapphire bezel insert 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.

⚙️

Movement & Performance

Edge: Blancpain

Automatic, Blancpain Calibre 1315 vs Automatic Caliber F6922

The Fifty Fathoms 45mm (titanium, blue dial) runs the Automatic, Blancpain Calibre 1315 (Blancpain 1315, three barrels, silicon balance spring, About 120 hours (five days) 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 Fifty Fathoms 45mm (titanium, blue dial) edges ahead on power reserve.

📏

Wearability & Fit

Edge: Orient

45mm vs 41.8mm — different wrist presence

At 45mm, the Fifty Fathoms 45mm (titanium, blue dial) has a bolder wrist presence compared to the Kamasu Automatic Diver at 41.8mm. Water resistance differs: 300m (30 ATM) vs 200m (20 ATM).

💰

Value & Cost of Ownership

Edge: Orient

Orient sits in the lower tier

The Blancpain Fifty Fathoms 45mm (titanium, blue dial) sits at $10,000–$25,000 and the Orient Kamasu Automatic Diver at $250–$500. On the specs that outlast any price: the Fifty Fathoms 45mm (titanium, blue dial) uses Sapphire Crystal, sapphire bezel insert with About 120 hours (five days), against Sapphire Crystal and 40 Hours on the Kamasu Automatic Diver. Service intervals are typically 5-7 years for both.

💧

Water Resistance

Edge: Blancpain

300m (30 ATM) vs 200m (20 ATM)

The Fifty Fathoms 45mm (titanium, blue dial) is rated to 300m (30 ATM) while the Kamasu Automatic Diver handles 200m (20 ATM). The Fifty Fathoms 45mm (titanium, blue dial) is better suited for water activities.

Our Verdict

Blancpain

Fifty Fathoms 45mm (titanium, blue dial)

Choose the Blancpain Fifty Fathoms 45mm (titanium, blue dial) if you prioritize Blancpain 1315, three barrels, silicon balance spring engineering, Swiss Made craftsmanship, and 300m (30 ATM) water resistance. At $10,000–$25,000, it delivers Automatic, Blancpain Calibre 1315 with About 120 hours (five days) 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 Blancpain Fifty Fathoms 45mm (titanium, blue dial) and Orient Kamasu Automatic Diver represent two distinct approaches to the diver category — the Blancpain bringing Swiss Made tradition while Orient delivers Made in Japan engineering.

Frequently Asked Questions

On price, the Orient Kamasu Automatic Diver sits a band lower ($250–$500 against $10,000–$25,000), 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 Blancpain Fifty Fathoms 45mm (titanium, blue dial) may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Fifty Fathoms 45mm (titanium, blue dial) at 45mm with 300m (30 ATM) water resistance handles everyday situations. The Kamasu Automatic Diver at 41.8mm with 200m (20 ATM) is similarly capable. The Fifty Fathoms 45mm (titanium, blue dial) uses Sapphire Crystal, sapphire bezel insert 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.