LONGINES AVIGATION WATCH TYPE A 7 VIDEO
LONGINES AVIGATION MONO-PUSHER CHRONOGRAPH TYPE A 7
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Published by José Sousa
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on October 9, 2012 at 04:08 p.m..
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Longines - Avigation Mono-Pusher Chronograph Type A 7
LONGINES AVIGATION WATCH TYPE A 7 is a single-pusher chronograph, which uses only one button to start the chrono function, to stop it, and to reset it to the zero position.
A classic chronograph, in contrast, has two push-buttons, one to trigger the function and the other for the reset.
Single-pusher chronographs are very rare, because they're mechanically more challenging, since a single button is co-axial with the winding crown.
You can found here the technical details of LONGINES AVIGATION WATCH TYPE A 7
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