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2. Pocket watch - Wikipedia

   en.wikipedia.org/wiki/Pocket_watch

   The first stem-wind and stem-set pocket watches were sold during the Great Exhibition in London in 1851 and the first owners of these new kinds of watches were Queen Victoria and Prince Albert. Stem-wind, stem-set movements are the most common type of watch-movement found in both vintage and modern pocket watches.

3. Movement (clockwork) - Wikipedia

   en.wikipedia.org/wiki/Movement_(clockwork)

   Mechanical watch movements are also classified as manual or automatic: Manual or hand winding In this type the wearer must turn the crown periodically, often daily, in order to wind the mainspring, storing energy to run the watch until the next winding. Automatic or self-winding

4. Elgin National Watch Company - Wikipedia

   en.wikipedia.org/wiki/Elgin_National_Watch_Company

   The company built the Elgin National Watch Company Observatory in 1910 to maintain scientifically precise times in their watches. The company produced many of the self-winding wristwatch movements made in the United States, beginning with the 607 and 618 calibers (which were bumper wind) and the calibers 760 and 761 (30 and 27 jewels respectively).

5. Laco Uhrenmanufaktur - Wikipedia

   en.wikipedia.org/wiki/Laco_Uhrenmanufaktur

   The new Swiss owners wanted Durowe to produce exclusively mechanical movements for ladies’ and men’s watches. Through the German company, the Swiss company got easy access to the markets of the European Economic Community (EEC), which (since 2009) has been incorporated into the larger, more integrated European Union .

6. Vacheron Constantin - Wikipedia

   en.wikipedia.org/wiki/Vacheron_Constantin

   In 1955, produced the world's thinnest manual-winding movement, the Calibre 1003. [1] In 1992, created the world's thinnest minute repeater, the Calibre 1755. [1] In 2015, created Reference 57260, the most complicated mechanical watch/pocket watch ever made, with 57 complications. [12] [40]

7. Watch - Wikipedia

   en.wikipedia.org/wiki/Watch

   The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, [57] but the first "self-winding", or "automatic", wristwatch was the invention of a British watch repairer named John Harwood in 1923. This type of watch winds itself without requiring any special action by the wearer.