Head-to-Head Comparison

Seiko 5 Sports GMT SSK001 vs Tissot Chemin des Tourelles Powermatic 80

Seiko's GMT watch meets Tissot's dress watch

Quick Verdict

The Seiko 5 Sports GMT SSK001 (~$495) offers Seiko In-House Automatic GMT precision at $130 less than the Tissot Chemin des Tourelles Powermatic 80 (~$625). The Chemin des Tourelles Powermatic 80 counters with Swiss Made craftsmanship and 50m (5 ATM) water resistance. Both are exceptional watches for their respective price points.

Transparency — We earn a small commission on purchases made through our Amazon links. This doesn't affect our editorial independence.

Seiko 5 Sports GMT SSK001

Seiko

5 Sports GMT SSK001

~$495

Tissot Chemin des Tourelles Powermatic 80

Tissot

Chemin des Tourelles Powermatic 80

~$625

Specifications Compared

FeatureSeiko 5 Sports GMT SSK001Tissot Chemin des Tourelles Powermatic 80
Price~$495~$625
Case Size42.5mm39mm
MovementAutomatic Caliber 4R34 (True GMT)Automatic Powermatic 80 (Caliber 80.111)
Caliber TypeSeiko In-House Automatic GMTETA/Tissot Automatic
Power Reserve41 Hours80 Hours
Water Resistance100m (10 ATM)50m (5 ATM)
CrystalHardlex CrystalSapphire Crystal
Case MaterialStainless SteelStainless Steel
OriginMade in JapanSwiss Made

Category-by-Category Analysis

🎨

Design & Aesthetics

Edge: Draw

Seiko's design language vs Tissot's approach

⚙️

Movement & Performance

Edge: Tissot

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

📏

Wearability & Fit

Edge: Tissot

42.5mm vs 39mm — different wrist presence

💰

Value & Cost of Ownership

Edge: Seiko

Seiko is $130 more affordable

💧

Water Resistance

Edge: Seiko

100m (10 ATM) vs 50m (5 ATM)

Our Verdict

Seiko

5 Sports GMT SSK001

Choose the Seiko 5 Sports GMT SSK001 if you prioritize Seiko In-House Automatic GMT engineering, Made in Japan craftsmanship, and 100m (10 ATM) water resistance. At ~$495, it delivers Automatic Caliber 4R34 (True GMT) with 41 Hours power reserve.

Check Price on Amazon

Tissot

Chemin des Tourelles Powermatic 80

Choose the Tissot Chemin des Tourelles Powermatic 80 if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 39mm proportions. At ~$625, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.

Check Price on Amazon

The Bottom Line

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

Frequently Asked Questions