Moritz Grossmann Caliber 100.2

Manufacturer	Moritz Grossmann
Caliber Number	100.2
Movement Type	Mechanical, manual-wind
Diameter	36.4mm
Height	5.4mm thick
Jewels	26
Components	227
Beats Per Hour	18,000 vph
Power Reserve	42 hours
Lift Angle	Unknown
Hairspring	Nivaflex
Shock Absorber	Incabloc
Functions	Hours, minutes, small seconds at 6:00, power reserve indicator at 12:00
Country of Manufacture	Germany
Known Models	BENU Power Reserve

The Moritz Grossmann caliber 100.2 is an in-house manual wind mechanical watch movement produced in Glashutte. This movement tells time with a classical central hours and minutes with a small seconds subdial at 6:00, but also features a power reserve indicator at 12:00. German made, 26 jewels, adjusted in 5 positions.

In Moritz Grossmann’s own words:

“Grossmann balance; lateral pusher for disabling the handsetting mode and starting the movement; bar-shaped power-reserve indicator with two-coloured display segment driven by a planetary gearing system; space saving and modified Glashütte stopwork with backlash; adjustment with Grossmann micrometer screw on a cantilevered balance cock; Pillar movement with 2/3 plate and frame pillars in untreated German silver, 2/3 plate, balance cock and escape-wheel cock hand-engraved; broad horizontal Glashütte ribbing, 3-band snailing on the ratchet wheel, raised gold chatons with pan-head screws; separately removable clutch winder; stop seconds for handsetting”

Additional Resources:

• Mortiz Grossmann brand history on Wikipedia
• Moritz Grossmann official caliber page here