A Brief History of the Rolex GMT-Master | The Rake
Rolex GMT-Master 6542 - 1957 | eBay
THE LIFESAVER'S ROLEX 6542 GMT A fine and extremely rare, self-winding 18k yellow gold wristwatch with date. | Important Modern & Vintage Timepieces. | Geneva, May 13th, 2018
First Rolex GMT-Master, Reference 6542, And Why The Gold Version Is Much More Desirable - Quill & Pad
Rolex - Double Signed: A Celebratio... Lot 14 November 2019 | Phillips
GMT-Master 'Captain Warren', Reference 6542 | An advert worn stainless steel dual time zone wristwatch with date and bakelite bezel | Circa 1958 | 勞力士 | GMT-Master 'Captain Warren' 型號6542 | 精鋼兩地時間腕錶備日期顯示及人造樹膠錶圈,製作年份約1958