In the UK, the retail price for the stainless steel 'Pilots' range (such as the GMT Master II) starts from GBP £5,600. Diamond inlay watches are more expensive. The book "Vintage Wristwatches" by Antiques Roadshow's Reyne Haines listed a price estimate of Rolex watches that ranged between $650 and $75,000, while listing Tudors between $250 and $9,000. The most expensive Rolex ever produced by the Rolex factory was the GMT Ice reference 116769TBR with a retail price of $485,350. A Forbes magazine article on the Swiss watch industry compared the retail value of Rolexes to that of competing brands Corum, Universal Genève and IWC.