IPC Main Group
G04B 33/00 Calibers
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
Related Keywords
CALIBERS for watches
8 direct subcodes
Child Classifications
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- G04B 33/02 Circular calibers
- G04B 33/04 Non-circular calibers
- G04B 33/06 of extremely flat shape
- G04B 33/08 in which the gear train is arranged in different planes, e.g. parallel or inclined to each other
- G04B 33/1 with seconds hand arranged in the centre of the dial
- G04B 33/12 for extremely-long running times
- G04B 33/14 Calibers of which the mainsprings or barrels are easily removable
- G04B 33/16 with arrangements affording protection of the clockwork against damage as a consequence of a rupture of the mainspring