This decorative watch worn on a bangle-type bracelet , the dial of which is cleverly concealed by a cover set with a large diamond , dates from 1868 . Created nearly 30 years after the founding of Patek Philippe, Czapek & Co. in 1839 , it is considered th...
Were there other inventions in the intervening 38 years between the PP 27368 (1868) and Cartier's Santos-Dumont (1904)? The text (in your "Historic Breakthrough" photo above) says the 27368 "...started a trend in watchmaking." It also alludes to the Carti...
Production of menβs wristwatches for military purposes starting in 1880: https://www.collectorsweekly.com/wristwatches/girard-perregaux Best, Emmanuel ...