Head-to-Head Comparison

Tissot PRX Powermatic 80 vs Citizen Promaster Sea Eco-Drive Diver

Tissot's timepiece meets Citizen's diver

Quick Verdict

The Citizen Promaster Sea Eco-Drive Diver ($250–$500) delivers Citizen Eco-Drive (Solar Quartz) technology in the tier below the Tissot PRX Powermatic 80 ($500–$1,000). The Promaster Sea Eco-Drive Diver measures 44mm and is rated 200m (20 ATM) ISO 6425. The PRX Powermatic 80 justifies its premium with Swiss Made heritage and Automatic Powermatic 80.111. Both represent excellent choices in the luxury watch category.

TissotPRX Powermatic 80$500–$1,000 Check price CitizenPromaster Sea Eco-Drive Diver$250–$500 Check price

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Tissot

PRX Powermatic 80

$500–$1,000

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Citizen

Promaster Sea Eco-Drive Diver

$250–$500

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Specifications Compared

Feature	Tissot PRX Powermatic 80	Citizen Promaster Sea Eco-Drive Diver
Price	$500–$1,000	$250–$500
Case Size	40mm	44mm
Movement	Automatic Powermatic 80.111	Eco-Drive Caliber E168
Caliber Type	In-House Automatic (ETA C07.111 base)	Citizen Eco-Drive (Solar Quartz)
Power Reserve	80 Hours	—
Water Resistance	100m (10 ATM)	200m (20 ATM) ISO 6425
Crystal	Scratch-resistant Sapphire	Mineral Crystal
Case Material	316L Stainless Steel	Stainless Steel
Origin	Swiss Made	Made in Japan

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Tissot's design language vs Citizen's approach

The Tissot PRX Powermatic 80 features a 316L Stainless Steel case at 40mm with Scratch-resistant Sapphire protection. The Citizen Promaster Sea Eco-Drive Diver offers Stainless Steel construction at 44mm with Mineral Crystal. Both represent their brand's distinct design philosophy and heritage.

⚙️

Movement & Performance

Edge: Tissot

Automatic Powermatic 80.111 vs Eco-Drive Caliber E168

The PRX Powermatic 80 runs the Automatic Powermatic 80.111 (In-House Automatic (ETA C07.111 base), 80 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Promaster Sea Eco-Drive Diver uses the Eco-Drive Caliber E168 (Citizen Eco-Drive (Solar Quartz), standard reserve) at standard. The PRX Powermatic 80 edges ahead on power reserve.

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Wearability & Fit

Edge: Tissot

40mm vs 44mm — different wrist presence

At 40mm, the PRX Powermatic 80 wears more compactly on smaller wrists compared to the Promaster Sea Eco-Drive Diver at 44mm. Water resistance differs: 100m (10 ATM) vs 200m (20 ATM) ISO 6425.

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Value & Cost of Ownership

Edge: Citizen

Citizen sits in the lower tier

The Tissot PRX Powermatic 80 sits at $500–$1,000 and the Citizen Promaster Sea Eco-Drive Diver at $250–$500. On the specs that outlast any price: the PRX Powermatic 80 uses Scratch-resistant Sapphire with 80 Hours, against Mineral Crystal and a standard reserve on the Promaster Sea Eco-Drive Diver. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Citizen

100m (10 ATM) vs 200m (20 ATM) ISO 6425

The PRX Powermatic 80 is rated to 100m (10 ATM) while the Promaster Sea Eco-Drive Diver handles 200m (20 ATM) ISO 6425. The Promaster Sea Eco-Drive Diver offers superior water resistance.

Our Verdict

Tissot

PRX Powermatic 80

Choose the Tissot PRX Powermatic 80 if you prioritize In-House Automatic (ETA C07.111 base) engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At $500–$1,000, it delivers Automatic Powermatic 80.111 with 80 Hours power reserve.

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Citizen

Promaster Sea Eco-Drive Diver

Choose the Citizen Promaster Sea Eco-Drive Diver if you value Citizen Eco-Drive (Solar Quartz) technology, Made in Japan heritage, and 44mm proportions. At $250–$500, the Eco-Drive Caliber E168 with ample power reserve makes it a compelling choice.

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The Bottom Line

The Tissot PRX Powermatic 80 and Citizen Promaster Sea Eco-Drive Diver represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Citizen delivers Made in Japan engineering.

Frequently Asked Questions

Neither is objectively better — they serve different preferences. The Tissot PRX Powermatic 80 ($500–$1,000) offers Automatic Powermatic 80.111 with 80 Hours power reserve, while the Citizen Promaster Sea Eco-Drive Diver ($250–$500) features Eco-Drive Caliber E168 with 200m (20 ATM) ISO 6425 water resistance. Choose based on your priorities: Swiss Made craftsmanship vs Made in Japan engineering.

The Citizen Promaster Sea Eco-Drive Diver offers better upfront value, sitting a tier lower at $250–$500. However, the Tissot PRX Powermatic 80 may justify its premium with superior finishing, heritage, or resale value.

Both are suitable for daily wear. The PRX Powermatic 80 at 40mm with 100m (10 ATM) water resistance handles everyday situations. The Promaster Sea Eco-Drive Diver at 44mm with 200m (20 ATM) ISO 6425 is similarly capable. The PRX Powermatic 80 uses Scratch-resistant Sapphire while the Promaster Sea Eco-Drive Diver uses Mineral Crystal. Sapphire resists scratches noticeably better than mineral 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.