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iwc_76240 [11.10.2021 21:09]
127.0.0.1 external edit
iwc_76240 [24.11.2021 18:03] (current)
gerdlothar
Line 7: Line 7:
 In [[1995]], IWC created a novel variant of the 7750 base. **Cal. 76240** dispenses with the calendar and most of the [[chronograph]] functions of the 7750, leaving only the 30 minute recorder at 12 00 and adding [[small seconds]] at 6 00 instead of the usual placement at 9 00. This modification was anything but simple, however. Relocating the running seconds required cutting away part of the movement base plate and adding an all-new bridge with three [[wheel]]s and a tension spring. Removing the calendar plate required the creation of a new plate to cover the [[gear train]]. Next, Habring's [[rattrapante]] design was added. A final modification was the removal of the automatic winding mechanism in favor of a simple [[hand-winding]] works. In [[1995]], IWC created a novel variant of the 7750 base. **Cal. 76240** dispenses with the calendar and most of the [[chronograph]] functions of the 7750, leaving only the 30 minute recorder at 12 00 and adding [[small seconds]] at 6 00 instead of the usual placement at 9 00. This modification was anything but simple, however. Relocating the running seconds required cutting away part of the movement base plate and adding an all-new bridge with three [[wheel]]s and a tension spring. Removing the calendar plate required the creation of a new plate to cover the [[gear train]]. Next, Habring's [[rattrapante]] design was added. A final modification was the removal of the automatic winding mechanism in favor of a simple [[hand-winding]] works.
  
-This movement powered the [[IWC Porgugieser Chrono-Rattrapante 3712|Porgugieser Chrono-Rattrapante, Ref. 3712]]. It was produced from [[1995]] through [[2004]].+This movement powered the [[IWC Portugieser Chrono-Rattrapante 3712|Portugieser Chrono-Rattrapante, Ref. 3712]]. It was produced from [[1995]] through [[2004]].
  
 ===== Applications ===== ===== Applications =====
-  * [[IWC Porgugieser Chrono-Rattrapante 3712]] (1995-2004)+  * [[IWC Portugieser Chrono-Rattrapante 3712]] (1995-2004)
  
  
iwc_76240.txt · Last modified: 24.11.2021 18:03 by gerdlothar

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