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2. Chronometer watch - Wikipedia

   en.wikipedia.org/wiki/Chronometer_watch

   Chronometer watch. A chronometer ( Ancient Greek: χρονόμετρον, khronómetron, "time measurer") is an extraordinarily accurate mechanical timepiece, with an original focus on the needs of maritime navigation. In Switzerland, timepieces certified by the Contrôle Officiel Suisse des Chronomètres ( COSC) may be marked as Certified ...

3. Automatic watch - Wikipedia

   en.wikipedia.org/wiki/Automatic_watch

   An automatic watch, also known as a self-winding watch or simply an automatic, is a mechanical watch where the natural motion of the wearer provides energy to wind the mainspring, making manual winding unnecessary if worn enough. [ 1] It is distinguished from a manual watch in that a manual watch must have its mainspring wound by hand at ...

4. Chronograph - Wikipedia

   en.wikipedia.org/wiki/Chronograph

   Chronograph. An Omega Speedmaster Professional, which is commonly regarded as one of the most iconic chronographs ever produced. Gallet MultiChron Astronomic ( c. 1959 )—complex mechanical chronograph with 12-hour recording capabilities, automatic day, date, month, and moon phase display. A chronograph is a specific type of watch that is used ...

5. COSC - Wikipedia

   en.wikipedia.org/wiki/COSC

   The Contrôle officiel suisse des Chronomètres(COSC), the Official Swiss Chronometer Testing Institute, is the institute responsible for certifying the accuracy and precision of Swiss watches. Background. [edit] Founded in its current form in 1973, the COSC is a Swiss non-profit organizationthat tests chronometersthat are Swiss Made.

6. Breitling Chronomat - Wikipedia

   en.wikipedia.org/wiki/Breitling_Chronomat

   The Chronomat was a patented design introduced in 1940 by Willy Breitling and the world's first two-pusher chronograph wristwatch. [6] [7] Breitling Chronomat men's watch ref. B13050 Made in Switzerland. The first model of the Chronomat collection had a circular slide rule and its design followed the appeal and design cues of the era for ...

7. Omega Seamaster - Wikipedia

   en.wikipedia.org/wiki/Omega_Seamaster

   Introduced. 1948. The Omega Seamaster is a line of automatic winding mechanical diving watches from Omega with a history that can be traced back to the original water-resistant dress-style watch released in 1948. The Seamaster collection is perhaps best known today for the Seamaster Diver Professional 300m model that has been worn in the James ...