With the BACKPAGE Transparent, Moritz Grossmann offers a showcase for the beauty of Grossmann’s watchmaking artistry. The watchmakers from Grossmann have designed the calibre 107.0 with a mirrored High-Artistic Finish and moved it to the dial side. The moving spectacle of the movement with Grossmann’s balance wheel, ratchet wheel, crown wheel and Glashütte stopwork with backlash can be admired in its entirety through the transparent sapphire crystal dial.

Calibre 107.0 is essentially a mirror image of the calibre 100.1, but with crucial new design elements. An additional wheel between the crown wheel and the ratchet wheel reverses the entire drive train with respect to the rotation of the mainspring barrel. The wheel train runs in the right direction thanks to the mirrored escapement and the mirrored oscillation system – also including the balance spring coiling direction.

Both the design and construction of the balance cock and escape-wheel cock were adapted to the larger dimensions of the 3/4 plate. The escapement wheel and the cantilevered balance cock with its hand-engraved, floral pattern create a balanced accent in the overall arrangement of the movement. The High-Artistic finish showcases attractive hand engravings, bevels, and chamfers.

On the new rear side of the movement, the winding and hand-setting mechanism is now openly integrated in the train bridge, so its functionality can be fully observed for the first time. Almost all parts are mirrored in order to guarantee their function even when mounted in the opposite position while ensuring the position of the lever remains unchanged.