IWC caliber 7922

IWC Caliber 7922

IWC caliber 7922

Brand IWC
Caliber Number 7922
Base Caliber ETA/Valjoux 7750
Movement Type Automatic
Jewels 25
Power Reserve 44 hours
Vibrations Per Hour 28,800
Shock System Incabloc
Features Chronograph, day, date
Country of Manufacture Switzerland
Known Models 3706

IWC caliber 7922 found in the IWC 3706 Flieger Chronograph watch. The base movement is an ETA/Valjoux 7750. It is adjusted to five positions.

Here is an excerpt of an excellent write-up by G. J. Buhyoff  aka Time Flies about IWC’s process of transforming a 7750 to a 7922.

The new c. 7922 utilizes IWC designed and re-engineered barrel and train assemblies as well as a new balance wheel and mainspring, in addition to more extensive finishing of bridges, plates and screws.. So, the basic Valjoux 7750 kit is essentially remade and becomes a 7922… IWC buys a 7750 kit and extensively reworks it, where that reworking is that of a substantive nature.

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Geoffrey Jackson
Geoffrey Jackson

What is “substantive” about spending the expensive time of some of the worlds greatest machine operators re-finishing plates and screws? People reading these pages are less likely to get duped by the mumbo-jumbo of certain watchmakers and of the sales staff in bricks and mortar shops selling their products, but poor John and Janet Doe get scandalously sucked in.”Improved” components are available for all ETA movements, including barrels, mainsprings, escapement kits, rotors, plates and screws, so listing the improvements made to a movement by even a most illustrious watchmaker does not mean that watchmaker has really conceived, tested and manufactured… Read more »

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