Rumor has it that there was a gathering recently in Schaffhausen. One person brought the classic 2005 Ingenieur, Ref. 3227, with its special ardoise dial as made for the limited edition Collectors' Forum Ingenieur.
Another person snuck out of the manufacture with the 2013 40mm Ingenieur, Ref. 3239. Of course, the temptation to take photos, comparing the two watches, was too much resist.
These exclusive photos were shot “in the wild”. As such, please excuse the quality, but I thought you'd want to compare the two models.

