Christopher Ward C63 Sealander GMT vs Mido Ocean Star GMT

Both are GMT watches in the upper tier. In short: the Mido Ocean Star GMT takes more water (200m) — both are fine for swimming, but it has more margin if you dive. The Christopher Ward C63 Sealander GMT is automatic, 150m water resistance, 39mm, sapphire crystal; the Mido Ocean Star GMT is automatic, 200m water resistance, 44mm, sapphire crystal.

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

Spec	Christopher Ward C63 Sealander GMT	Mido Ocean Star GMT
Movement	Automatic	Automatic
Water resistance	150m	200m
Case size	39mm	44mm
Crystal	sapphire	sapphire
Style	GMT / travel	GMT / travel
Price tier	Upper	Upper

Which should you buy?

The Mido Ocean Star GMT takes more water (200m) — both are fine for swimming, but it has more margin if you dive
The Christopher Ward C63 Sealander GMT wears 39mm vs the Mido Ocean Star GMT's 44mm — choose by wrist size

Where to buy

Christopher Ward C63 Sealander GMTSee price on AmazonCheck price

Mido Ocean Star GMTSee price on AmazonCheck price

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FAQ

What's the difference between the Christopher Ward C63 Sealander GMT and the Mido Ocean Star GMT?
Both are GMT watches in the upper tier. The Christopher Ward C63 Sealander GMT is automatic, 150m water resistance, 39mm, sapphire crystal; the Mido Ocean Star GMT is automatic, 200m water resistance, 44mm, sapphire crystal.

Which has better water resistance, the Christopher Ward C63 Sealander GMT or the Mido Ocean Star GMT?
The Mido Ocean Star GMT, rated 200m, versus 150m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Christopher Ward C63 Sealander GMT or the Mido Ocean Star GMT?
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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