The watch you're supposed to buy
Most Submariners are bought for what they announce, not what they do. A case for asking the question at all — using the watch someone actually needed, and the one actually built for diving, as the examples.
Worn daily, serviced rarely, never polished.
The Rolex you should have bought
A GMT-Master II bought the year his son was born, worn through sixteen years of departure lounges, and already spoken for.
The deal watch
A Panerai PAM914 bought to mark a deal that went sideways. Four years later, it goes to construction sites, swims, does school runs, and gains a few minutes a day.