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Oris Aquis Date vs Omega Seamaster Diver 300M

Both are dive watches in the premium tier. In short: the Oris Aquis Date wears 41.5mm vs the Omega Seamaster Diver 300M's 42mm — choose by wrist size. The Oris Aquis Date is automatic, 300m water resistance, 41.5mm, sapphire crystal; the Omega Seamaster Diver 300M is automatic, 300m water resistance, 42mm, sapphire crystal.

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

SpecOris Aquis DateOmega Seamaster Diver 300M
MovementAutomaticAutomatic
Water resistance300m300m
Case size41.5mm42mm
Crystalsapphiresapphire
StyleDiveDive
Price tierPremiumPremium

Which should you buy?

The Oris Aquis Date wears 41.5mm vs the Omega Seamaster Diver 300M's 42mm — choose by wrist size.

Where to buy

Oris Aquis DateSee price on AmazonCheck price

Omega Seamaster Diver 300MSee price on AmazonCheck price

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FAQ

What's the difference between the Oris Aquis Date and the Omega Seamaster Diver 300M?
Both are dive watches in the premium tier. The Oris Aquis Date is automatic, 300m water resistance, 41.5mm, sapphire crystal; the Omega Seamaster Diver 300M is automatic, 300m water resistance, 42mm, sapphire crystal.

Which is better value, the Oris Aquis Date or the Omega Seamaster Diver 300M?
Both sit in the premium 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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