Mido Ocean Star 200C vs Certina DS Action Diver

Both are dive watches in the upper tier. In short: the Certina DS Action Diver takes more water (300m) — both are fine for swimming, but it has more margin if you dive. The Mido Ocean Star 200C is automatic, 200m water resistance, 42.5mm, sapphire crystal; the Certina DS Action Diver is automatic, 300m water resistance, 43mm, sapphire crystal.

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

Spec	Mido Ocean Star 200C	Certina DS Action Diver
Movement	Automatic	Automatic
Water resistance	200m	300m
Case size	42.5mm	43mm
Crystal	sapphire	sapphire
Style	Dive	Dive
Price tier	Upper	Upper

Which should you buy?

The Certina DS Action Diver takes more water (300m) — both are fine for swimming, but it has more margin if you dive.

Where to buy

Mido Ocean Star 200CSee price on AmazonCheck price

Certina DS Action DiverSee price on AmazonCheck price

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FAQ

What's the difference between the Mido Ocean Star 200C and the Certina DS Action Diver?
Both are dive watches in the upper tier. The Mido Ocean Star 200C is automatic, 200m water resistance, 42.5mm, sapphire crystal; the Certina DS Action Diver is automatic, 300m water resistance, 43mm, sapphire crystal.

Which has better water resistance, the Mido Ocean Star 200C or the Certina DS Action Diver?
The Certina DS Action Diver, rated 300m, versus 200m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Mido Ocean Star 200C or the Certina DS Action Diver?
Both sit in the upper 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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