Head-to-Head Comparison

Tissot PRX Powermatic 80 35mm vs Seiko 5 Sports GMT SSK001

Tissot's timepiece meets Seiko's GMT watch

Quick Verdict

The Seiko 5 Sports GMT SSK001 (~$495) delivers Seiko In-House Automatic GMT technology at $300 less than the Tissot PRX Powermatic 80 35mm (~$795). The PRX Powermatic 80 35mm justifies its premium with Swiss Made heritage and Automatic Powermatic 80 (Caliber 80.111). Both represent excellent choices in the luxury watch category.

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Tissot PRX Powermatic 80 35mm

Tissot

PRX Powermatic 80 35mm

~$795

Seiko 5 Sports GMT SSK001

Seiko

5 Sports GMT SSK001

~$495

Specifications Compared

FeatureTissot PRX Powermatic 80 35mmSeiko 5 Sports GMT SSK001
Price~$795~$495
Case Size35mm42.5mm
MovementAutomatic Powermatic 80 (Caliber 80.111)Automatic Caliber 4R34 (True GMT)
Caliber TypeETA/Tissot AutomaticSeiko In-House Automatic GMT
Power Reserve80 Hours41 Hours
Water Resistance100m (10 ATM)100m (10 ATM)
CrystalSapphire CrystalHardlex Crystal
Case MaterialStainless SteelStainless Steel
OriginSwiss MadeMade in Japan

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Tissot's design language vs Seiko's approach

⚙️

Movement & Performance

Edge: Tissot

Automatic Powermatic 80 (Caliber 80.111) vs Automatic Caliber 4R34 (True GMT)

📏

Wearability & Fit

Edge: Tissot

35mm vs 42.5mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Seiko

Seiko is $300 more affordable

💧

Water Resistance

Edge: Draw

100m (10 ATM) vs 100m (10 ATM)

Our Verdict

Tissot

PRX Powermatic 80 35mm

Choose the Tissot PRX Powermatic 80 35mm if you prioritize ETA/Tissot Automatic engineering, Swiss Made craftsmanship, and 100m (10 ATM) water resistance. At ~$795, it delivers Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve.

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Seiko

5 Sports GMT SSK001

Choose the Seiko 5 Sports GMT SSK001 if you value Seiko In-House Automatic GMT technology, Made in Japan heritage, and 42.5mm proportions. At ~$495, the Automatic Caliber 4R34 (True GMT) with 41 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Tissot PRX Powermatic 80 35mm and Seiko 5 Sports GMT SSK001 represent two distinct approaches to fine watchmaking — the Tissot bringing Swiss Made tradition while Seiko delivers Made in Japan engineering.

Frequently Asked Questions