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Seiko Prospex Turtle SRPE vs Seiko Prospex Solar Tuna SNE575

Both are dive watches in the mid tier. In short: the Seiko Prospex Turtle SRPE is mechanical (automatic) for the enthusiast feel and no battery; the Seiko Prospex Solar Tuna SNE575 is solar / light-powered for accuracy and low maintenance. The Seiko Prospex Turtle SRPE is automatic, 200m water resistance, 45mm, hardlex crystal; the Seiko Prospex Solar Tuna SNE575 is solar / light-powered, 200m water resistance, 47mm, hardlex crystal.

Last verified 2026-06-27 · specs from manufacturer data · tier = price band, confirm the live price at the retailer

SpecSeiko Prospex Turtle SRPESeiko Prospex Solar Tuna SNE575
MovementAutomaticSolar / light-powered
Water resistance200m200m
Case size45mm47mm
Crystalhardlexhardlex
StyleDiveDive
Price tierMidMid

Which should you buy?

The Seiko Prospex Turtle SRPE is mechanical (automatic) for the enthusiast feel and no battery; the Seiko Prospex Solar Tuna SNE575 is solar / light-powered for accuracy and low maintenance.

Where to buy

Seiko Prospex Turtle SRPESee price on AmazonCheck price

Seiko Prospex Solar Tuna SNE575See price on AmazonCheck price

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FAQ

What's the difference between the Seiko Prospex Turtle SRPE and the Seiko Prospex Solar Tuna SNE575?
Both are dive watches in the mid tier. The Seiko Prospex Turtle SRPE is automatic, 200m water resistance, 45mm, hardlex crystal; the Seiko Prospex Solar Tuna SNE575 is solar / light-powered, 200m water resistance, 47mm, hardlex crystal.

Which is better value, the Seiko Prospex Turtle SRPE or the Seiko Prospex Solar Tuna SNE575?
Both sit in the mid tier, so it comes down to movement, water resistance and case size — see the spec table above.

Citing these specs? Go ahead — manufacturer data, last verified 2026-06-27. Copy a ready-made reference:

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