Patent ID: 8386542

Claim:
A metric-converter watch device consisting of: (a) a small watch-shaped housing having a display panel and a numeric keypad, both disposed on a top surface; and (b) a microprocessor configured to perform mathematical operations and configured to convert a first English numeric value to a first metric numeric value and convert a second metric numeric value to a second English numeric value, wherein the microprocessor is operatively connected to a first conversion button, to a second conversion button, and the display panel, wherein the microprocessor is configured to: receive a first input signal from the first conversion button when the first conversion button is depressed, after which the microprocessor generates a first output command to the display panel to recall the first English numeric value displayed on the display panel, after which the microprocessor then calculates the first metric numeric value by multiplying the first English numeric value by a first conversion filter, and the microprocessor then generates a second output command to the display panel to display the first metric numeric value; and receive a second input signal from the second conversion button when the second conversion button is depressed, after which the microprocessor generates a third output command to the display panel to recall the second metric numeric value displayed on the display panel, after which the microprocessor then calculates the second English numeric value by multiplying the second metric numeric value by a second conversion factor, and the microprocessor then generates a fourth output command to the display panel to display the second English numeric value; wherein the conversion between metric units and English units comprises dimension in length, area, weight, volume, temperature, energy, power, pressure and force; wherein the microprocessor is operatively connected to a battery, the battery being operatively connected to a solar panel disposed on the housing, wherein the solar panel provides power to re-charge the battery.