If you're into Blancpains, dive watches and militaria this is a grail set! It's an early 1970's dive board used by the Bundeswehr. These were used in trainings, underwater missions (like defusing mines), it is believed this was used during NATO excercises (the patch which came with the set is NATO). It features a huge and beautiful Compass, a Spirotechnique dept meter and a the icing on the cake is a Blancpain Fifty Fathoms 3H Bund. The watch is in all original used condition, nothing touched up (like most), a bit rough as it should be!!! It is probably the rarest you can find as it has various military engravings (99% don't have this). The massive and distinctive case meaures nearly 42mm and unpolished. Movement is based on an ETA 2873 and Rayville signed. The original dial & hands are in original condition, down to the scratched crystal. This set will complete any Blancpain collection!