Moritz Grossmann Caliber 102.0

Manufacturer	Moritz Grossmann
Caliber Number	102.0
Movement Type	Mechanical, manual-wind
Diameter	26.00mm
Height	3.45mm thick
Jewels	26
Components	196
Beats Per Hour	21,600 vph
Power Reserve	48 hours
Lift Angle	Unknown
Hairspring	Nivaflex
Shock Absorber	Incabloc
Functions	Hours, minutes, small seconds
Country of Manufacture	Germany
Known Models	Tefnut, Tefnut 36, Tefnut Email, Tefnut Sleeping Beauty, Tefnut Arabian Nights, Benu Anniversary Lost in Space, Moon in Space

The Moritz Grossmann caliber 102.0 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 in various positions. German made, 26 jewels, adjusted in 5 positions.

In Moritz Grossmann’s own words:

“Shock-resistant balance with inertia and poising screws, impulse pin integrated in rim; flat balance spring; balance staff with integrated safety roller /index adjuster with Grossmann micrometer screw; plate movement with 3/5 plate, frame pillars, and separately removable clutch winding mechanism; frame parts in untreated German silver; raised gold chatons with pan-head screws; remodified Glashütte stopwork with backlash; mainspring barrel with bilateral jewel bearings for optimised power management; ARCAP train wheels; proprietary escapement with 18-tooth escape wheel”

Additional Resources:

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