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Japanese tool watch

Seiko Prospex

Seiko Prospex — quick facts for buyers

Seiko Prospex dive watch guide: Seiko’s professional dive range spans the Turtle and Sumo to higher Marinemaster pieces. Modern Prospex divers are commonly 200 m / 660 ft rated with solid cases and 4R or 6R automatics (or more advanced calibres on upper models). Hardlex or sapphire crystals depending on reference. Excellent performance-to-price ratio. Compare water resistance, movement, case detai

Independent guide with indicative specs. Verify the exact reference, water resistance and seller terms before purchase. Affiliate links may earn a commission.

Seiko’s professional dive range spans the Turtle and Sumo to higher Marinemaster pieces. Modern Prospex divers are commonly 200 m / 660 ft rated with solid cases and 4R or 6R automatics (or more advanced calibres on upper models). Hardlex or sapphire crystals depending on reference. Excellent performance-to-price ratio.

Seiko Marinemaster dive watch
case~44 mm typical (Turtle/Sumo)
water resistance200 m / 660 ft
movement4R / 6R Auto common
crystalHardlex / Sapphire
Indicative reference price£250–£1,200

This is editorial price context, not a live quote or guaranteed current price.

Quick answers about the Seiko Prospex

What is the water resistance of the Seiko Prospex?

200 m / 660 ft

What movement does the Seiko Prospex use?

4R / 6R Auto common

What should I check before buying the Seiko Prospex?

Check the exact reference number, current specification, condition, retailer terms, warranty and current price. Different references within the same collection can have different dimensions or movements.

Where to check current availability

Retailer listings can change. Check the exact reference, price, stock and terms at the destination.

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