Thanks for posting and I can look at these photos all day long. I’ve recently developed a great interest in military chronographs and all these are dream pieces to have. As others have mentioned, the missing pieces to complete the family are perhaps the Lemania 1872 “Viggen” and the Universal CP1. If you consider civilian versions too, there are the Tissot Navigator, Bulova Marine Star and the Excelsior Park Monte Carlo, too. They all had the same design cues and used the 817 case, identical to the Lemania “Viggen” and obviously the Breitling 817, as the name suggested. The Sinn Bund was really just a re-dial Heuer Bund during service, so it’s good to have but really not necessary. Keep up the good work and I am looking forward to your next post on them.