Marine Timekeepers | Greenwich Observatory signed Chris Parry

John Harrison marine timekeepers miniature sheet, paying tribute to his solution to the “Longitude Problem” — a breakthrough that reshaped global navigation. Royal Observatory, Greenwich postmark dated 12 June 2025, collectable honours horology, innovation, and the British influence behind the story of precision timekeeping at sea.

Autographed by Chris Parry, retired Royal Navy officer who was the first chair of the British Government's Marine Management Organisation until November 2010.

Parry joined the Royal Navy as a seaman officer in 1972 and then became an observer in the Fleet Air Arm in 1979. In 1982, he was mentioned in despatches for his actions during the Falklands War, his part in rescuing sixteen SAS troopers from Fortuna Glacier in South Georgia and for the detection and disabling of the Argentinian submarine Santa Fe.