Grand Seiko Sport SLGA017 Tentagraph GMT vs Tissot PRX Automatic Chronograph Blue

In-Depth Comparison

The Grand Seiko Sport SLGA017 Tentagraph GMT and the Tissot PRX Automatic Chronograph Blue represent two compelling options in the luxury watch market. Both timepieces have earned devoted followings among collectors and enthusiasts, but they approach horology from distinctly different perspectives. Let's break down how these two watches compare across the key dimensions that matter most to buyers.

Heritage And Brand Prestige

Grand Seiko and Tissot are both highly respected names in watchmaking. The Grand Seiko Sport SLGA017 Tentagraph GMT comes from Japan, while the Tissot PRX Automatic Chronograph Blue originates from Switzerland. This particular Sport reference was introduced in 2024, while this PRX reference debuted in 2023. The Grand Seiko Sport SLGA017 Tentagraph GMT is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Grand Seiko Sport SLGA017 Tentagraph GMT beats the 9RA2 caliber offering a 72-hour power reserve running at 28,800 vph with 50 jewels. The Tissot PRX Automatic Chronograph Blue is powered by the ETA A05.H31 with a 60-hour power reserve operating at 28,800 vph featuring 25 jewels. The Grand Seiko Sport SLGA017 Tentagraph GMT wins on power reserve with a 12-hour advantage, which means less frequent winding for those who rotate watches.

Dimensions And Wearability

The Grand Seiko Sport SLGA017 Tentagraph GMT features a 43.2mm case at 15.3mm thick with a 50.0mm lug-to-lug measurement, crafted in Stainless Steel. The Tissot PRX Automatic Chronograph Blue comes in at 42.0mm and 14.1mm thick with 49.0mm lug-to-lug, constructed from Stainless Steel. The Tissot PRX Automatic Chronograph Blue wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 162g, the Tissot PRX Automatic Chronograph Blue is the lighter of the two.

Materials And Construction

The Grand Seiko Sport SLGA017 Tentagraph GMT uses a Sapphire crystal paired with a Fixed Tachymeter bezel, while the Tissot PRX Automatic Chronograph Blue features Sapphire crystal with a Fixed bezel. On the wrist, the Grand Seiko Sport SLGA017 Tentagraph GMT comes on a Stainless Steel bracelet with Fold-over, while the Tissot PRX Automatic Chronograph Blue is fitted with Stainless Steel bracelet featuring Fold-over.

Water Resistance And Capability

The Grand Seiko Sport SLGA017 Tentagraph GMT is rated to 100m / 328ft and the Tissot PRX Automatic Chronograph Blue to 100m / 328ft. Both watches share the same water resistance rating, making them equally suited for aquatic activities.

Pricing And Value

At retail, the Grand Seiko Sport SLGA017 Tentagraph GMT lists for $13,000 compared to $1,450 for the Tissot PRX Automatic Chronograph Blue. The Tissot PRX Automatic Chronograph Blue is the more accessible option at MSRP, saving $11,550 at retail. On the secondary market, the Grand Seiko Sport SLGA017 Tentagraph GMT trades around $12,000 while the Tissot PRX Automatic Chronograph Blue commands approximately $1,200.

The Verdict

Choosing between the Grand Seiko Sport SLGA017 Tentagraph GMT and the Tissot PRX Automatic Chronograph Blue ultimately comes down to personal priorities. For value-conscious buyers, the Tissot PRX Automatic Chronograph Blue delivers excellent quality at a lower price point. Both watches are exceptional timepieces that will serve their owner well for generations. We recommend trying both on the wrist at an authorized dealer before making your final decision, as comfort and emotional connection are ultimately just as important as specifications.