Manually-actuated contact switch arrangement for electronic watc
Marble watch
Master clock generator for a parallel variable speed constant fr
Master clock system for a parallel variable speed constant frequ
Master/slave clock system
Master/slave clock system with automatic protocol detection...
Mat for timing competitions
Mat for timing competitions
Mayan Symbol-bearing clock device
Maze lock hanger
Maze lock hanger
Means for attaching a band to a watch case
Means for detachably attaching ornamental container to wrist wat
Means for generating a succession of prompts requiring a corresp
Means for generating an intermittent alarm sound for a timepiece
Means for loading or extracting data from a portable object,...
Means for recharging a watch accumulator
Means of setting a solid state watch
Measuring a long time period
Measuring signals in a tester system