MECHANICALLY-DRIVEN CLOCKS OR WATCHES

**Definition:** This place covers: A mechanical timepiece is defined as a timepiece which is: Driven by power which does not use electricity; therefore mechanically driven, pneumatically driven, hydraulically driven timepieces, sundials (but not electronic simulations of sundials); mechanically regulated, hence making no use of electric, magnetic or electromagnetic means.

**Limiting references (this place does not cover):** This place does not cover: Timepieces in which the power is generated electrically AND mechanically do not form part of G04B . Mechanical parts of electronic or electromechanical timepieces should be classified in G04C or G04G in the structural parts fields, in particular in G04G17/00 . However, connections between parts, special gearings that could also be used in mechanically driven watches should also be classified in G04B .