Head-to-Head Comparison

Seiko Prospex Samurai SRPL13 vs Tissot Seastar 1000 Automatic

Two divers compared — $500–$1,000 vs $500–$1,000

Quick Verdict

The Seiko Prospex Samurai SRPL13 ($500–$1,000) and Tissot Seastar 1000 Automatic ($500–$1,000) are closely matched divers at similar price points. The Prospex Samurai SRPL13 emphasizes Seiko In-House Automatic engineering while the Seastar 1000 Automatic focuses on Swiss Made craftsmanship.

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Seiko Prospex Samurai SRPL13

Seiko

Prospex Samurai SRPL13

$500–$1,000

Tissot Seastar 1000 Automatic

Tissot

Seastar 1000 Automatic

$500–$1,000

Specifications Compared

FeatureSeiko Prospex Samurai SRPL13Tissot Seastar 1000 Automatic
Price$500–$1,000$500–$1,000
Case Size41.7mm40mm
MovementAutomatic Caliber 4R35Automatic Powermatic 80 (Caliber 80.111)
Caliber TypeSeiko In-House AutomaticETA/Tissot Automatic
Power Reserve41 Hours80 Hours
Water Resistance200m (20 ATM)300m (30 ATM)
CrystalHardlex CrystalSapphire Crystal
Case MaterialStainless SteelStainless Steel
OriginMade in JapanSwiss Made

Category-by-Category Analysis

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Design & Aesthetics

Edge: Draw

Seiko's design language vs Tissot's approach

The Seiko Prospex Samurai SRPL13 features a Stainless Steel case at 41.7mm with Hardlex Crystal protection. The Tissot Seastar 1000 Automatic offers Stainless Steel construction at 40mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.

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Movement & Performance

Edge: Tissot

Automatic Caliber 4R35 vs Automatic Powermatic 80 (Caliber 80.111)

The Prospex Samurai SRPL13 runs the Automatic Caliber 4R35 (Seiko In-House Automatic, 41 Hours power reserve) at 21,600 vph (3 Hz) frequency. The Seastar 1000 Automatic uses the Automatic Powermatic 80 (Caliber 80.111) (ETA/Tissot Automatic, 80 Hours reserve) at 21,600 vph (3 Hz). The Seastar 1000 Automatic offers a longer power reserve.

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Wearability & Fit

Edge: Tissot

41.7mm vs 40mm — different wrist presence

At 41.7mm, the Prospex Samurai SRPL13 has a bolder wrist presence compared to the Seastar 1000 Automatic at 40mm. Water resistance differs: 200m (20 ATM) vs 300m (30 ATM).

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Value & Cost of Ownership

Edge: Draw

Same tier — different value propositions

The Seiko Prospex Samurai SRPL13 sits at $500–$1,000 and the Tissot Seastar 1000 Automatic at $500–$1,000. On the specs that outlast any price: the Prospex Samurai SRPL13 uses Hardlex Crystal with 41 Hours, against Sapphire Crystal and 80 Hours on the Seastar 1000 Automatic. Service intervals are typically 5-7 years for both.

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Water Resistance

Edge: Tissot

200m (20 ATM) vs 300m (30 ATM)

The Prospex Samurai SRPL13 is rated to 200m (20 ATM) while the Seastar 1000 Automatic handles 300m (30 ATM). The Seastar 1000 Automatic offers superior water resistance.

Our Verdict

Seiko

Prospex Samurai SRPL13

Choose the Seiko Prospex Samurai SRPL13 if you prioritize Seiko In-House Automatic engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At $500–$1,000, it delivers Automatic Caliber 4R35 with 41 Hours power reserve.

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Tissot

Seastar 1000 Automatic

Choose the Tissot Seastar 1000 Automatic if you value ETA/Tissot Automatic technology, Swiss Made heritage, and 40mm proportions. At $500–$1,000, the Automatic Powermatic 80 (Caliber 80.111) with 80 Hours power reserve makes it a compelling choice.

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The Bottom Line

The Seiko Prospex Samurai SRPL13 and Tissot Seastar 1000 Automatic represent two distinct approaches to the diver category — the Seiko bringing Made in Japan tradition while Tissot delivers Swiss Made engineering.

Frequently Asked Questions

On the makers' published figures the two are close: Automatic Caliber 4R35 in the Seiko Prospex Samurai SRPL13 against Automatic Powermatic 80 (Caliber 80.111) in the Tissot Seastar 1000 Automatic, 200m (20 ATM) against 300m (30 ATM) water resistance, 41.7mm against 40mm cases. Pick by size and design; neither has a specification edge that decides it.
Both are priced similarly, making this a question of preference rather than value. The Prospex Samurai SRPL13 emphasizes Seiko In-House Automatic technology while the Seastar 1000 Automatic prioritizes ETA/Tissot Automatic precision.
Both are suitable for daily wear. The Prospex Samurai SRPL13 at 41.7mm with 200m (20 ATM) water resistance handles everyday situations. The Seastar 1000 Automatic at 40mm with 300m (30 ATM) is similarly capable. The Prospex Samurai SRPL13 uses Hardlex Crystal while the Seastar 1000 Automatic uses Sapphire Crystal.

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.