"Pocket Watch Chrono-alarm Paris Exhibition 1889"
Rare and amazing pocket watch chrono alarm clock in steel with porcelain dial, Arabic numerals in Gothic writing. This chrono alarm clock was made for the 1889 World's Fair, it has a reviel function, in the center on a finely chiseled brass plate. In perfect original condition and fully revised, this chrono alarm clock works perfectly. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato