The soon to be released film “The Bourne Legacy” gets your attention with the exclamation “There was never just one”. But while there may be multiple Bournes, there is only one IWC Pilot’s Watch Double Chronograph Top Gun edition.
Vintage Laco B-uhr watch, type B. B-uhren is an abbreviation for Beobachtungs-uhren, literally Observation watches. B-Uhr is singular, and B-Uhren is plural. The B-Uhren were property of the Luftwaffe, not the navigators.