In Geneva on Monday, Christie's is staging a stunning sale of Important Watches. Top of the timepiece heap is a fine, large and rare stainless steel chronograph by Patek Philippe made in 1941, one of Patek's rarest chronograph models, which could fetch up to $1 million. There are several extremely precious Patek Philippes in the sale, including an 18K gold dual crown world time wristwatch made for Tiffany & Co. in 1963, est. $500,000 - $760,000; and a large and rare 18K pink gold chronograph with a pink dial from 1941, est. $425,000 - $850,000.

Also included are several superlative Rolexes, including a very fine and rare stainless steel automatic triple calendar wristwatch with moon phases from 1953, est. $127,000 - $212,000; a stainless steel chronograph with pulsometre scale and a black dial from 1941 (above), est. $127,000 - $212,000; and an atimagnetic stainless steel triple calendar chronograph from 1960, est. $100,000 - $150,000. See the gallery for pix.