Casio F-91W vs Casio AE1200WH (Casio Royale)

Both are everyday watches in the entry tier. In short: the Casio AE1200WH (Casio Royale) takes more water (100m) — the one to pick if you swim. The Casio F-91W is quartz, 30m water resistance, 34mm, acrylic crystal; the Casio AE1200WH (Casio Royale) is quartz, 100m water resistance, 42mm, acrylic crystal.

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

Spec	Casio F-91W	Casio AE1200WH (Casio Royale)
Movement	Quartz	Quartz
Water resistance	30m	100m
Case size	34mm	42mm
Crystal	acrylic	acrylic
Style	Everyday / casual	Everyday / casual
Price tier	Entry	Entry

Which should you buy?

The Casio AE1200WH (Casio Royale) takes more water (100m) — the one to pick if you swim
The Casio F-91W wears 34mm vs the Casio AE1200WH (Casio Royale)'s 42mm — choose by wrist size

Where to buy

Casio F-91WSee price on AmazonCheck price

Casio AE1200WH (Casio Royale)See price on AmazonCheck price

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FAQ

What's the difference between the Casio F-91W and the Casio AE1200WH (Casio Royale)?
Both are everyday watches in the entry tier. The Casio F-91W is quartz, 30m water resistance, 34mm, acrylic crystal; the Casio AE1200WH (Casio Royale) is quartz, 100m water resistance, 42mm, acrylic crystal.

Which has better water resistance, the Casio F-91W or the Casio AE1200WH (Casio Royale)?
The Casio AE1200WH (Casio Royale), rated 100m, versus 30m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Casio F-91W or the Casio AE1200WH (Casio Royale)?
Both sit in the entry 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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