Longines Spirit vs IWC Pilot's Watch Mark XVIII

Both are pilot watches. In short: the Longines Spirit takes more water (100m) — the one to pick if you swim. The Longines Spirit is automatic, 100m water resistance, 40mm, sapphire crystal; the IWC Pilot's Watch Mark XVIII 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	Longines Spirit	IWC Pilot's Watch Mark XVIII
Movement	Automatic	Automatic
Water resistance	100m	50m
Case size	40mm	40mm
Crystal	sapphire	sapphire
Style	Pilot / aviation	Pilot / aviation
Price tier	Upper	Premium

Which should you buy?

The Longines Spirit takes more water (100m) — the one to pick if you swim
The Longines Spirit sits in the lower price tier (Upper) if budget leads

Where to buy

Longines SpiritSee price on AmazonCheck price

IWC Pilot's Watch Mark XVIIISee price on AmazonCheck price

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FAQ

What's the difference between the Longines Spirit and the IWC Pilot's Watch Mark XVIII?
Both are pilot watches. The Longines Spirit is automatic, 100m water resistance, 40mm, sapphire crystal; the IWC Pilot's Watch Mark XVIII is automatic, 50m water resistance, 40mm, sapphire crystal.

Which has better water resistance, the Longines Spirit or the IWC Pilot's Watch Mark XVIII?
The Longines Spirit, rated 100m, versus 50m on the other. Pick 100m or higher for swimming and 200m+ for diving.

Which is better value, the Longines Spirit or the IWC Pilot's Watch Mark XVIII?
The Longines Spirit is the lower-priced tier; the other steps up in build for more money — confirm both live prices at the retailer.

Citing these specs? Go ahead — manufacturer data, last verified 2026-06-27. Copy a ready-made reference:

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