Jaquet Droz Grande Seconde Nuumite

This Jaquet Droz Grande Seconde with Nuutmite stone dial is in near-mint condition. The red gold case is 43 mm in diameter. The dial is a hand cut and polished piece of nuumite from Greenland, approximately 3 million years old. Self winding movement with twin barrels and 68 hour power reserve. Number 5 from the limited edition of 8 Grande Seconde with nuumite dial. Complete with boxes and papers.