If a straightforward, dependable Casio is the timepiece equivalent of a Ford Taurus, then a Patek Philippe is the Bentley of watches--they're both made by hand, and often cost well into the six figures. And if you're the kind of guy who likes to drop over a hundred thousand on finely-made machinery, Christie's Important Pocket Watches and Wristwaches auction is the auction for you. Some of the highlights:

This rare Vacheron Constantin, in 18k pink gold, will cost an estimated $250,000-$500,000. You might want to keep it in the safe instead of wearing it.

The Officine Panerei, was designed for the Italian Navy and built with some parts supplied by Rolex. From around 1944, it was conceived to be the most resilient watch of its time. (Estimate: $70,000-$100,000)

Audemars Piguet's 18k gold and platinum watch from 1924 is a prime example of refined Art Décor discretion. (Estimate: $80,000-$120,000)

For the Rolex men out there, and you know who you are, the Rolex Triple Calendar Chronograph will keep you up to date. (Estimate: $70,000-$100,000)

--David Coggins