Moritz Grossmann:BACKPAGE

The construction of the entire calibre 107.0 is mirrored, to explain it in the most simple way, and is essentially a calibre 100.1 in reverse. When you want to flip a movement to display the gear train, escapement and other bits normally only visible through a transparent caseback on the front of the watch, you might encounter a few issues. The most important one is the rotational direction of all the wheels. If not corrected, it would result in the hands running counter-clockwise. Moritz Grossmann reworked the calibre 100.1 to reroute the rotational direction so it will run clockwise again. An extra wheel is positioned between the crown wheel and ratchet wheel. Other than that, the construction of the entire escapement is different too. On one hand, it needed to be reworked to fit with the redesigned 3/4 plate and on the other hand, the escapement and direction of the coiling of the balance spring are mirrored too. The balance cock is hand-decorated with a floral engraving, as is common in all Moritz Grossmann movements. 

Another common trait in all calibres by Moritz Grossmann is the use of untreated German Silver for the plate and bridges, which has a warm, champagne tone. Often the calibres are treated with German ribbing, comparable to Geneva stripes, but in the Moritz Grossmann Backpage Transparent, the plates have been finished with the brand’s own ribbing.