Hamilton Khaki Aviation Pilot vs Sinn 104

Both are pilot watches in the upper tier. In short: the Sinn 104 takes more water (200m) — both are fine for swimming, but it has more margin if you dive. The Hamilton Khaki Aviation Pilot is automatic, 100m water resistance, 42mm, sapphire crystal; the Sinn 104 is automatic, 200m water resistance, 41mm, sapphire crystal.

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

Spec	Hamilton Khaki Aviation Pilot	Sinn 104
Movement	Automatic	Automatic
Water resistance	100m	200m
Case size	42mm	41mm
Crystal	sapphire	sapphire
Style	Pilot / aviation	Pilot / aviation
Price tier	Upper	Upper

Which should you buy?

The Sinn 104 takes more water (200m) — both are fine for swimming, but it has more margin if you dive
The Hamilton Khaki Aviation Pilot wears 42mm vs the Sinn 104's 41mm — choose by wrist size

Where to buy

Hamilton Khaki Aviation PilotSee price on AmazonCheck price

Sinn 104See price on AmazonCheck price

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FAQ

What's the difference between the Hamilton Khaki Aviation Pilot and the Sinn 104?
Both are pilot watches in the upper tier. The Hamilton Khaki Aviation Pilot is automatic, 100m water resistance, 42mm, sapphire crystal; the Sinn 104 is automatic, 200m water resistance, 41mm, sapphire crystal.

Which has better water resistance, the Hamilton Khaki Aviation Pilot or the Sinn 104?
The Sinn 104, rated 200m, versus 100m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Hamilton Khaki Aviation Pilot or the Sinn 104?
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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