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Seiko 5 SNK809 vs Orient Defender

Both are field / explorer watches in the entry 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 5 SNK809Orient Defender
MovementAutomaticAutomatic
Water resistance30m100m
Case size37mm42mm
Crystalhardlexmineral
StyleField / explorerField / explorer
Price tierEntryEntry

Which should you buy?

Where to buy

Check the Seiko 5 SNK809 price on Amazon →

Check the Orient Defender price on Amazon →

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FAQ

What's the difference between the Seiko 5 SNK809 and the Orient Defender?
Both are field / explorer watches in the entry tier. The Seiko 5 SNK809 is automatic, 30m water resistance, 37mm, hardlex crystal; the Orient Defender is automatic, 100m water resistance, 42mm, mineral crystal.

Which has better water resistance, the Seiko 5 SNK809 or the Orient Defender?
The Orient Defender, rated 100m, versus 30m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Seiko 5 SNK809 or the Orient Defender?
Both sit in the entry tier, so it comes down to movement, water resistance and case size — see the spec table above.

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