By Amarachi Orie, CNN (CNN) — Auction house Christie’s in New York is set to offer up its most expensive watch ever – a limited-edition Richard Mille – alongside rare timepieces, such as ones that once belonged to a former US president and an Apollo 7 astronaut. The transparent Richard Mille wristwatch, with a complex sapphire case design and Read this story at KEYT , KIFI , KTVZ
