Certainly a lovely 1675 from 1977. The dial and hands appear to be perfect and have very nice patina and big lume plots. The case is sharp and unpolished with clear numbers between the lugs. The bezel is sharp and the insert is very nice and original red back. The bracelet is the original 7836 with 280 end links - it does have some stretch. The movement is running strong and keeping good time however last service is unknown.
Technical details
Brand: Rolex
Year: 1977
Reference: 1675
Dial: matte black
Case: 40mm unpolished
Movement:
Bracelet: 7836/280
Accessories: none