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In a November 5, 2015 posting on the OnTheDash vintage Heuer discussion forum, one of the members of our community (Gianluca) provided a beautifully illustrated, step-by-step description showing the disassembly of a Caliber 15 chronograph movement (known as the “Chronomatic” movement). The Chronomatic was the first automatic chronograph movement, and this family of movements was
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