Seiko Prospex Speedtimer Solar SSC815 vs Tissot PRX Automatic Chronograph Blue

In-Depth Comparison

The Seiko Prospex Speedtimer Solar SSC815 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

Seiko and Tissot are both highly respected names in watchmaking. The Seiko Prospex Speedtimer Solar SSC815 comes from Japan, while the Tissot PRX Automatic Chronograph Blue originates from Switzerland. This particular Prospex reference was introduced in 2022, while this PRX reference debuted in 2023. The Tissot PRX Automatic Chronograph Blue is the newer release, potentially featuring more modern technology and finishing.

Movement And Mechanics

At the heart of the Seiko Prospex Speedtimer Solar SSC815 beats the V192 caliber. 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.

Dimensions And Wearability

The Seiko Prospex Speedtimer Solar SSC815 features a 39.0mm case at 11.7mm thick with a 46.0mm 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 Seiko Prospex Speedtimer Solar SSC815 wears more compactly on the wrist, making it potentially more suitable for smaller wrists or those who prefer understated proportions. At 140g, the Seiko Prospex Speedtimer Solar SSC815 is the lighter of the two.

Materials And Construction

The Seiko Prospex Speedtimer Solar SSC815 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 Seiko Prospex Speedtimer Solar SSC815 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 Seiko Prospex Speedtimer Solar SSC815 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 Seiko Prospex Speedtimer Solar SSC815 lists for $550 compared to $1,450 for the Tissot PRX Automatic Chronograph Blue. On the secondary market, the Seiko Prospex Speedtimer Solar SSC815 trades around $430 while the Tissot PRX Automatic Chronograph Blue commands approximately $1,200.

The Verdict

Choosing between the Seiko Prospex Speedtimer Solar SSC815 and the Tissot PRX Automatic Chronograph Blue ultimately comes down to personal priorities. For dress occasions and smaller wrists, the Seiko Prospex Speedtimer Solar SSC815 is more versatile. 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.