Nic - I have some chronograph service manuals for some of the other movements used by Heuer. Landeron is one of them. Let me know what others you might need and I will see what I have. You can borrow them to publish online. I hope someone starts making some of the replacement parts for these movements soon. Some of the parts can't be found anywhere or are outrageously expensive. Craig
PS - as a collector and trader you should have a set of these:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=200303736210

: i am starting to put up some service manual on my site for
: anyone/watchmaker out there who needs help with movements heuer
: used over the years. This is just the start, but i have started
: off with athe valjoux 23 service manual which has so far never
: been available on the web. it has the full parts numbers list
: (which is also compatible with the valjoux 72) this is very
: important in helping findind correct parts for our beloved
: valjoux heartbeats. a few watchparts stores still carry parts
: for these so these numbers are very helpful.
: please enjoy, if not now some time when its needed.
: http://www.heuerboy.com/technicalmanuals.htm
: nic