Patek Philippe watches in stainless steel are the hot thing among vintage collectibles. Phillips’s auction house, whose watch division is spearheaded by Bacs & Russo, has set four world records for stainless steel Patek Philippe watches over the last two years. A new find coming up in the Geneva Watch Auction: FOUR could possibly break the current record of almost $4 million. Check out that Patek Philippe Reference 1518 right here.