IWC Watches on Twitter: "231 PARTS FOR PRECISION: the IWC-manufactured 69385 calibre. Ensuring precise measurement of stop times up to 12 hours, the movement is designed for complete reliability and total precision.
Introducing: IWC's Smaller Pilot's Chronograph Is Cleared For Takeoff - Hodinkee
IWC caliber 69385 » WatchBase
IWC Pilot's Watch Chronograph iN Bronze – Element iN Time NYC