It is known that Stauffer & Co. of London exclusively imported IWC watches
into the UK since the mid-1890s, and that at some time in the mid 1930s
Stauffer lost this relationship and that the company of Edwin Harrop were
appointed sole agents for IWC in the UK, but I have not seen the exact date of
this recorded. The announcement from July 1936 reproduced below shows that
this occurred around then, probably in May or early June 1936 for it to be
printed in the July issue.
The company Edwin Harrop was most famous for the invention of an expanding
metal bracelet called the Brittanic, and a waterproof wristwatch called the
Submarine, although it was not the first of that name.
Regards David