These watches were first used unmarked by the Luftwaffe 1934, Natalis, Mimo, Breitling Chronograph, Titus, Zenith, Omega, Helvetia. Manyother manufacturers, such as Longines, Roamer, Lanco etc. made this type of watch. The cases are nickel or chrome and all have fixed mounts. The back cover is screwed or snapped on.
IWC: Luftwaffe navigation watch 55 mm ,movement IWC cal 52. The case is different to those of the other producers:
The case has an inner extra antimagnetic case,lugs 25,5 mm with spring mount. Therewere only 1000 pieces produced. – bottom:early version with cylindrical windingknob.
