A pocket watch is a watch that is made to be carried in a pocket, as opposed to a wristwatch, which is strapped to the wrist.
Savonette with cathedral hands and luminescent dial made by Thos. Russell & Son (probably in the 1920s)
A golden pocket watch with hunter-case and watch chain
Pocket watches evolved from clock-watches, supposedly called Nuremberg eggs, worn on chains around the neck. Example by Peter Henlein, 1510, Germanisches Nationalmuseum Nuremberg.
A French pocket watch from the 1920s
A mystery watch or mystery clock, in horology, is a timepiece whose working is not easily deducible, because it seems to have no movement at all, or the hands do not seem to be connected to any moveme
Pocket watch
…the higher purity of other types of silver to make circulating coins and other utilitarian silver objects last longer with heavy use. A so-called "mystery watch" with a transparent dial, c. 1889, Musée d'Horlogerie of Le Locle, Switzerland. It is the first transparent watch. Watch manufacture was becoming…
Montre mystérieuse (mystery watch), circa 1889, Musée d'Horlogerie of Le Locle, Switzerland. It is the first transparent watch.