IWC caliber 98300
The IWC manufacture 98300 calibre is almost identital to the 98295 calibre.
The Vintage Collection Pilot's Watch has a thicker dial and therefore more clearance is needed. Its cannon pinion is a few millimeters taller, even though the movement itself has the same height in specifications.
The case construction of the Vintage Pilot (IW3254) needed more height than the Vintage Portuguese (IW5445) and the dial was part of that design. That in turn caused a one part replacement and cal. 98295 became 98300.
All watches using the IWC 98300 movement:
IW3254-05 IWC Vintage Pilot’s Watch Hand-Wound 1936 Platinum
IW3254-01 IWC Vintage Pilot’s Watch Hand-Wound 1936
IW3254-03 IWC Vintage Pilot’s Watch Hand-Wound 1936 Rose Gold / Silver
IW5454-06 IWC Portuguese Hand-Wound Rose Gold
IW5104-01 IWC Big Pilot Heritage 55
IW5454-09 IWC Portuguese Hand-Wound Rose Gold Boutique Edition
IW3254-07 IWC Vintage Pilot’s Watch Hand-Wound 1936 Rose Gold / Black / Sincere