jakob bäuerle of furtwangen germany has been given credit as the first to combine a mechanism that produces a trumpeters call with a clock. this was most likely first done in the year 1857. the first trumpeter clocks were very simple in design, producing a simple bugle call that is reproduced once for each hour. in the later years the musical abilities of the clocks greatly improved, and many examples were made to produce complex musical tunes. although many different makers made the trumpeter clocks, emilian wehrle was without question the undisputed leader of trumpeter clock production and design.