I think it’s fair to say that any watch which replicates another instrument is a kind of gimmick. Dashboard watches come immediately to mind, as do more specific gauges like altimeters and speedometers, and even digital recreations of vintage video game consoles, and so on. Rarely do I find these gimmicks interesting or original, but the Reservoir Sonomaster Chronograph is an exception to my general disregard for such timepieces.
The reference 4217 is effectively a second generation descendant of early Calatrava-style wrist watches from Vacheron Constantin. The first generation began to appear in the 1930s as the company began to work with Jaeger LeCoultre base movements in order to serially produce more modern wrist watches for a changing market. Those earlier references that predate the 4217 include the 2871 and a few models that are not clearly specified by reference numbers. The 4217 began production sometime in the early to mid 1940s.