Peter L de Mory Gray Two-day Marine Chronometer

Peter L de Mory Gray Two-day Marine Chronometer, no. 628, 222 Water Street Cor., Beekman, New York, 4-in. silvered dial with subsidiary seconds and up/down indicator dials and marked as above, chain fusee movement with helical hairspring, split bimetallic balance and spring detent, in a gimbaled brass bowl, housed in the bottom tier of a brass-bound wooden box, ht. 4 1/2 in.