Some of these seem somewhat less than totally practical. Given that I am moderately inept at telling time to start with (shhh) I’m not sure how well these would do for me… but I’m still fascinated!
Sisyphus watch, $32.

Electronic paper watch, price unknown.

LED Binary watch, $70.
Theory of Relativity watch, $32.
Rotating Earth watch, $600.

Infection watch, $134.

Equaliser watch, $150.
G108 watch phone, price unknown.
Salvador Dali watch, $32.

Shinshoku watch, $142.
Celestial watch, $600.

Q version watch, $152.

Jacob and Co. Quenttin watch, $360,000
And for people who constantly need to have tools handy, make sure to check out the Stanley line of tools-in-watches.
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