What you are showing is a split second stopwatch, not a pocket chronograph. The stopwatch is marked for seconds (60 second scale) and also decimal minutes (0 through 100 scale).

A "chronograph" would also have hands to indicate the time of day, as shown here -- http://www.onthedash.com/Guide/_Stopwatches/a.Pocket_Chronographs/

I can go through some catalogs tonight, to try to find the exact reference number. It's a nice looking stopwatch!!

Jeff

+++++++++++++++++++++++++++++

: I'm looking for information about this chronometer. Reference,
: year, appearance in a catalogue ?
: One of my friends thinks that the "HK" initials are a
: reference to Heckler & Koch, a German weapons manufacturer.
: And consequently, it might be a chronometer to calculate some
: sort of productivity ?
: Any expert in chrono's out there who could help ? Thank you.

:

: Jean-Pierre