Servicing the most used chronograph movement in history

We recently serviced a beautiful Eberhard & Co Navy Master with the 7551 movement inside, you can watch it here:

The 7750 family is easily the most successful chronograph movement family ever, being used in watches from a variety of brands, from lesser known brands to the likes of IWC and Omega. In this video we go through some of the history of the movement family and talk a bit about Eberhard & Co also.