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Front, Dial, Back, Hallmark, Cuvette, Cuvette mark, Movement, Hacking mechanism The English Center Seconds Chronograph is actually a hacking watch that was used in applications where it was necessary for the watch to agree closely with a time standard. The slide stops the movement and allows the watch to be synchronized with a clock, other watches or a time ball. This example by Young & Sons of Newcastle on Tyne is typical of the keywind examples of these watches and is a better quality with fuzee and interesting dial work. Later keyless examples usually have a going barrel. |