Behold the Uwerk Zeit Device UR-1001, one the world's most exquisite, intricate and expensive pocket watches that retails for a cool 345,000 Swiss Francs ($400,000).



Designed by Swiss watchmaker Uwerk, the slick piece sports 51 jewels within its steel body. But the most impressive part about the UR-1001 is its claimed lifespan. There's a 100-year dial located in the back. Once it hits 100 years, a second linear calendar will automatically start counting down the centuries, and can apparently go up to a full millennium.



But unless you actually plan on living that long to see it work, we doubt that spending all that cash would be worth it.