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Seiko Prospex SPB143 vs Mido Ocean Star 200C

Both are dive watches in the upper tier — here's how the specs differ and which to pick.

Last verified 2026-06-11 · specs from manufacturer data · tier = price band, confirm the live price at the retailer

SpecSeiko Prospex SPB143Mido Ocean Star 200C
MovementAutomaticAutomatic
Water resistance200m200m
Case size40.5mm42.5mm
Crystalsapphiresapphire
StyleDiveDive
Price tierUpperUpper

Which should you buy?

Where to buy

Check the Seiko Prospex SPB143 price on Amazon →

Check the Mido Ocean Star 200C price on Amazon →

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FAQ

What's the difference between the Seiko Prospex SPB143 and the Mido Ocean Star 200C?
Both are dive watches in the upper tier. The Seiko Prospex SPB143 is automatic, 200m water resistance, 40.5mm, sapphire crystal; the Mido Ocean Star 200C is automatic, 200m water resistance, 42.5mm, sapphire crystal.

Which is better value, the Seiko Prospex SPB143 or the Mido Ocean Star 200C?
Both sit in the upper tier, so it comes down to movement, water resistance and case size — see the spec table above.

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