1. A metric-converter watch device comprising: (a) a watch housing having a first side, a second side, a third side, a fourth side, a top surface, and a bottom surface; wherein a cavity is disposed on the top surface; wherein a battery compartment may be disposed in the bottom surface of the housing, wherein a battery is disposed in a battery compartment; and (b) a watch panel having a first side, a second side, a third side, a fourth side, a top side, and a back side, wherein the watch panel is pivotably attached to the watch housing such that the watch panel is pivotably moveable between an open position and a closed position, wherein the watch panel resides entirely within the cavity at the closed position such that the top side of the watch panel aligns with the top surface of the watch housing; wherein a functioning clock is disposed on the top side of the watch panel and a back side screen is disposed on the back side of the watch panel; (c) an inside touch screen disposed within the cavity of the watch housing, wherein the inside touch screen faces the back side screen when the watch panel is at the closed position; wherein when the touch screen is powered on, a first conversion icon, a second conversion icon and a plurality of touch screen keypad icons are displayed on the touch screen; (d) a microprocessor disposed within the watch housing, wherein the microprocessor is operatively connected to the battery, the back side screen, the touch screen; wherein when the first conversion icon, the second conversion icon or the touch screen keypad icons are pressed, the touch screen generates corresponding input signals and sends the input signals to the microprocessor; wherein the microprocessor is 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 configured to: receive a first numeric value input from the touch screen when one or more keypad icons are depressed, subsequently generate a first output command to the back side panel to display the first numeric value on the back side panel as a first English numeric value; subsequently receive a first input signal from touch screen when the first conversion icon is depressed, subsequently calculate a first metric numeric value by multiplying the first English numeric value by a first conversion factor, and the microprocessor then generates a second output command to the back side screen to display the first metric numeric value; and receive a second numeric value input from the touch screen when one or more keypad icons are depressed, subsequently generate a third output command to the back side panel to display the second numeric value on the back side panel as a second metric numeric value; subsequently receive a second input signal from touch screen when the second conversion icon is depressed, subsequently calculate 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 back side screen to display the second English numeric value.