: I'm not certain the lack of issue markings will greatly effect the
: value. Over the last few years i have noted the Sinn refurbished
: models & some original Heuer un-issued versions of this
: watch acheiving very similar values to the clearly issued
: versions. The only point of note is that there are some very
: focussed military watch collectors out there & although they
: are probably not ready to part with more money for an issued
: model , they do seem to be prepared to wait for an issued
: version to come up over the non-marked versions.
: - Darren

If you do a Google search for Heuer Bundeswehr, one of the first items will be a very comprehensive review of the many variations by Walter Manning. This may answer some of the questions raised. As far as missing numbers, in my case, I have a non-3H model with military marking on the case back, but apparently them model number between the lugs has been polished off and is no longer visible.