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
Recent Comments
Hi Omega caliber 571 and 570 escape wheel is same or different
Yep, 763e. That has to be it. Thanks for your confirmation. Many thanks
https://calibercorner.com/ronda-caliber-763e/
Ah, I believe it's a 763e Am I correct?
Glad you found it! https://calibercorner.com/ronda-caliber-763/
Without taking mine apart, I found the same exact watch with the Ronda movement. Face…
Hi Keith, please try posting a picture of the movement and watch in the forum.