103.0

Moritz Grossmann caliber 103.0 is a hand-wound movement with 3-minute tourbillon escapement. It consists of 245 parts including 30 jewels, of which 4 are fitted in screwed gold chatons. Notable features include its flying three-minute tourbillon with screw-secured driving wheel and V-shaped balance bridge, the Grossmann balance with suspended balance spring adjustable with poising screws in the rim.