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The movement and dial were contained within the two halves of the case, which were pulled apart to reveal the watch. (See NAWCC vertical files "HERMETIC.") The hermetic was developed to create a completely sealed watch, which could be carried anywhere in a pocket, purse, or handbag. The design was given the English patent No. The mainspring was provided with a slipping system to prevent it from being overwound. However, the firm of Movado in La Chaux de Fonds took over the concept and in 1927 patented its modification of the system to incorporate an automatic winding system that used racks fitted inside the case to rotate a winding pinion when the case was opened and closed. Initially, these watches were designed to be wound in the normal way using a button on the movement. 278,669 of October 11, 1926, details the construction and performance of a watchcase made in two halves, which closed to seal the watch inside. The hermetic or sealed watch was pioneered by the Swiss watchcase manufacturers Huguenin, Davoine, and Huguenin of Le Locle, who traded as Huguenin Frères et Cie, Fabrique Niel. The watch movement is usually Swiss made. They are now regarded as both timepieces and art objects. Although total numbers produced were small, many styles and innovative methods of opening the cases exist. These hermetic/purse watches were enclosed in a protective case (shell). Also known as the purse watch, this style was introduced in the mid-1920s. In 1916-1918 the company ran dramatic two-page advertisements that said its brands were "TAVANNES WATCH Co., CYMA, MYSTERIA, ENIGMA, and DIANA." This timepiece was named "La Captive," a hermetic (purse watch) fitted in a silver art deco rectangular case, designed with two flip-open doors to allow the movement to pop up. By 1913 TAVANNES employed 1,000 workers and turned out 2,500 watches a day. By 1910 TAVANNES had become one of the most important factories in Switzerland. A CYMA advertisement that said "since 1862" implied that the earliest of the companies was founded in 1862. The name is confusing because the name of the town Tavannes also appears in other company names. 1915: The company’s 20th-century product range naturally included wristwatches of the most diverse character for example the shock-proof models with a protective cover over the fragile crystal glasses that were issued to soldiers in 1915. Producer name: Tavannes Watch Company Production date: Circa 1930 Made in: Europe, Switzerland Dimensions: 45 (length) by 40 (width) by 10 (depth) millimeters (case) Markings: Dial: TAVANNES, SWISS Movement: Case (inside): MECAN, TAVANNES WATCH CO, SWISS, 825925, 10303 Curator's comments: TAVANNES Watch Co. 1910: Thanks to its constant innovation, Tavannes Watch Co won the Gold Medal at the Grand Prix de Bruxelles in 1910. Crown at "12" (on dial) winds and sets hands. Squared metal Arabic dial with luminous (radium) numerals and hands (hands reilluminated), no seconds, mounted in a silver case that pops open to reveal the time by two small pushers.
#1910 tavannes pocket watch manual#
1930 Brief description: Rectangular silver art deco case, manual winding, detached lever, hermetic (purse) watch.