Adam:
Somewhere, I have an article which gives some specifics of the German navy acquisition of wrist-mounted Swiss-made watches - with date, specifics of the manufacturer, and quantity if I recall correctly - but I can't find it right now! I'll keep looking.
In the meantime, in case you haven't seen it, I do have a fairly lengthy article (text file only) entitled "Military Timepieces: Watches Issued to British Armed Forces 1870-1970" by A. Taylerson, published in the 'Horological Journal' Sept./Oct. 1995 (British Horological Institute). If you'd like that, PM me your e-mail address and I'll send you the file. It is in "WordPerfect" format, but if you think you won't be able to open it in that format, I can first convert it to Word or other more "universal" format ....