This Rolex GMT-Master 1675 dates to circa 1978 (serial 552XXXX) and features the desirable MK5 matte tritium dial, which remains in excellent condition with perfectly matching tritium hands. The case has just returned from a professional polish and is sharp and well defined. The serial and reference numbers between the lugs are crisp and clearly legible. Fitted with a newer Pepsi bezel insert in excellent condition and an original 78360 Oyster bracelet with 580 endlinks showing only minimal stretch. The clasp is stamped G, and the caseback is correctly marked 1675. The watch comes with no known service history but has been tested and is running perfectly. A clean and attractive example of a late-production matte dial 1675 with strong vintage appeal.