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The Senator Chronometer is the first officially certified chronometer from Glashütte Original. The term “chronometer” denotes an especially accurate clock or watch such as those used for air and sea navigation in the past. In Germany, wristwatch chronometer certification is administered by the State offices for weights and measurements of Thuringia (LMET) and Saxony (SLME). German chronometers must pass a series of demanding performance and accuracy tests; the exacting German norm requires, in addition, that each candidate for chronometer certification be set to the second and tested in its own case. A novel stop-seconds/reset mechanism allows the wearer to set the precise time with ease. Pulling the crown stops the time display and causes the second hand to jump to the beginning position, where it remains; the minute hand moves simultaneously to the next full minute. When the crown is then turned to set the time, the minute hand stops only on the indication of the full minute, th...