Tissot Gentleman Powermatic 80 vs Hamilton Jazzmaster Open Heart

Both are dress watches in the upper tier. In short: the Tissot Gentleman Powermatic 80 takes more water (100m) — the one to pick if you swim. The Tissot Gentleman Powermatic 80 is automatic, 100m water resistance, 40mm, sapphire crystal; the Hamilton Jazzmaster Open Heart is automatic, 50m water resistance, 40mm, sapphire crystal.

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

Spec	Tissot Gentleman Powermatic 80	Hamilton Jazzmaster Open Heart
Movement	Automatic	Automatic
Water resistance	100m	50m
Case size	40mm	40mm
Crystal	sapphire	sapphire
Style	Dress	Dress
Price tier	Upper	Upper

Which should you buy?

The Tissot Gentleman Powermatic 80 takes more water (100m) — the one to pick if you swim.

Where to buy

Tissot Gentleman Powermatic 80See price on AmazonCheck price

Hamilton Jazzmaster Open HeartSee price on AmazonCheck price

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FAQ

What's the difference between the Tissot Gentleman Powermatic 80 and the Hamilton Jazzmaster Open Heart?
Both are dress watches in the upper tier. The Tissot Gentleman Powermatic 80 is automatic, 100m water resistance, 40mm, sapphire crystal; the Hamilton Jazzmaster Open Heart is automatic, 50m water resistance, 40mm, sapphire crystal.

Which has better water resistance, the Tissot Gentleman Powermatic 80 or the Hamilton Jazzmaster Open Heart?
The Tissot Gentleman Powermatic 80, rated 100m, versus 50m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Tissot Gentleman Powermatic 80 or the Hamilton Jazzmaster Open Heart?
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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