A pictoral review of the Heuer Bundeswehr chronograph and it's many dial variations. Lately there has been much discussion surrounding what constitutes an authentic Heuer Bundeswehr-spec chronograph.
![Heuer Bundeswehr Serial Numbers Heuer Bundeswehr Serial Numbers](http://ninanet.net/watches/others15/Larges/lheuerc02.jpg)
![Bundeswehr Bundeswehr](http://assets3.lionseek.com/item/watches/medium_47791652-fs-very-nice-heuer-bundeswehr.jpg)
Here’s a copy of the. This was the technical manual from the (West) German Air Force Material Service (Materialamt der Luftwaffe) publication no. 49B2-1HLB1-1 Technical Handbook and Service Manual, dated 2 May 1972. Operation, Maintenance, Repair, and Illustrated Parts Catalog for Heuer and Sinn model 1550 SG wrist chronograph models made for the West German Bundeswehr from approx. 1967-1981, TKZ 1550 SG, NSN 6645-12-146-5081 for the complete watch and strap set; watch head alone is NSN 6645-12-146-3774.