Head-to-Head Comparison

Updated September 5, 2026

Bulova Devil Diver Oceanographer 96B350 vs Casio MRW-230H

Bulova's diver meets Casio's timepiece

Quick Verdict

The Casio MRW-230H (Under $50) delivers Casio Quartz (Battery) technology in the tier below the Bulova Devil Diver Oceanographer 96B350 ($500–$1,000). The MRW-230H measures 44.6mm (47.9 x 44.6 x 12.3mm) and is rated 100m (10 ATM). The Devil Diver Oceanographer 96B350 justifies its premium with Made in Japan (Movement) heritage and Automatic Miyota 8215. Both represent excellent choices in the luxury watch category.

BulovaDevil Diver Oceanographer 96B350$500–$1,000 Check price CasioMRW-230HUnder $50 Check price

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Bulova

Devil Diver Oceanographer 96B350

$500–$1,000

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Casio

MRW-230H

Under $50

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Specifications Compared

Feature	Bulova Devil Diver Oceanographer 96B350	Casio MRW-230H
Price	$500–$1,000	Under $50
Case Size	41mm	44.6mm (47.9 x 44.6 x 12.3mm)
Movement	Automatic Miyota 8215	Quartz
Caliber Type	Miyota Automatic	Casio Quartz (Battery)
Power Reserve	42 Hours	Approx. 3-year battery (SR626SW)
Water Resistance	200m (20 ATM)	100m (10 ATM)
Crystal	Sapphire Crystal	Resin Glass
Case Material	Stainless Steel	Resin case, aluminum bezel ring
Origin	Made in Japan (Movement)	Casio (Japan)

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Bulova's design language vs Casio's approach

The Bulova Devil Diver Oceanographer 96B350 features a Stainless Steel case at 41mm with Sapphire Crystal protection. The Casio MRW-230H offers Resin case, aluminum bezel ring construction at 44.6mm (47.9 x 44.6 x 12.3mm) with Resin Glass. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Casio

Automatic Miyota 8215 vs Quartz

The Devil Diver Oceanographer 96B350 runs the Automatic Miyota 8215 (Miyota Automatic, 42 Hours power reserve) at 21,600 vph (3 Hz) frequency. The MRW-230H uses the Quartz (Casio Quartz (Battery), Approx. 3-year battery (SR626SW) reserve) at standard. The MRW-230H offers a longer power reserve.

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Wearability & Fit

Edge: Bulova

41mm vs 44.6mm (47.9 x 44.6 x 12.3mm) — different wrist presence

At 41mm, the Devil Diver Oceanographer 96B350 wears more compactly on smaller wrists compared to the MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm). Water resistance differs: 200m (20 ATM) vs 100m (10 ATM).

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Value & Cost of Ownership

Edge: Casio

Casio sits in the lower tier

The Bulova Devil Diver Oceanographer 96B350 sits at $500–$1,000 and the Casio MRW-230H at Under $50. On the specs that outlast any price: the Devil Diver Oceanographer 96B350 uses Sapphire Crystal with 42 Hours, against Resin Glass and Approx. 3-year battery (SR626SW) on the MRW-230H. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Bulova

200m (20 ATM) vs 100m (10 ATM)

The Devil Diver Oceanographer 96B350 is rated to 200m (20 ATM) while the MRW-230H handles 100m (10 ATM). The Devil Diver Oceanographer 96B350 is better suited for water activities.

Our Verdict

Bulova

Devil Diver Oceanographer 96B350

Choose the Bulova Devil Diver Oceanographer 96B350 if you prioritize Miyota Automatic engineering, Made in Japan (Movement) craftsmanship, and 200m (20 ATM) water resistance. At $500–$1,000, it delivers Automatic Miyota 8215 with 42 Hours power reserve.

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Casio

MRW-230H

Choose the Casio MRW-230H if you value Casio Quartz (Battery) technology, Casio (Japan) heritage, and 44.6mm (47.9 x 44.6 x 12.3mm) proportions. At Under $50, the Quartz with Approx. 3-year battery (SR626SW) power reserve makes it a compelling choice.

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The Bottom Line

The Bulova Devil Diver Oceanographer 96B350 and Casio MRW-230H represent two distinct approaches to fine watchmaking — the Bulova bringing Made in Japan (Movement) tradition while Casio delivers Casio (Japan) engineering.

Frequently Asked Questions

The Bulova Devil Diver Oceanographer 96B350 is the better buy if you want a mechanical movement; the Casio MRW-230H is the better buy if you want quartz accuracy with no servicing. For water, the Bulova Devil Diver Oceanographer 96B350 is rated 200 m against 100 m, which is the difference between swimming and diving on one side and splashes on the other. On price, the Casio MRW-230H sits a band lower (Under $50 against $500–$1,000), 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 Casio MRW-230H offers better upfront value, sitting a tier lower at Under $50. However, the Bulova Devil Diver Oceanographer 96B350 may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The Devil Diver Oceanographer 96B350 at 41mm with 200m (20 ATM) water resistance handles everyday situations. The MRW-230H at 44.6mm (47.9 x 44.6 x 12.3mm) with 100m (10 ATM) is similarly capable. The Devil Diver Oceanographer 96B350 uses Sapphire Crystal while the MRW-230H uses Resin Glass.

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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.