Maker: Patek Philippe 
Original Price: N/A (Created For Auction)
Worth Today: $31.19 million*

Patek Philippe calls its Patek Philippe Grandmaster Chime Watch  the most “complicated” wristwatch it has “ever made.” The watch is worth tens of millions, and only seven examples of the Grandmaster Chime have ever been made. One example is located at the Patek Philippe Museum in Geneva, Switzerland, so only six are “on the market.”

The wristwatch has twenty complications, two independent dials, a reversible case, and six patented innovations. All in all, the development, assembly, and production of just one of these legendary timepieces cost over 100,000 hours. Patek Philippe has been a world leader in complicated watches, but it outdid itself with the Grandmaster.