Armstrong, Westerman, Hattori, McLeland & Naughton, LLP
Wrist watch having thermoelectric generator
 In an attempt to improve balance in size between a dial and a watch case, while securing sufficient power generated by thermoelectric elements, and also achieving miniaturization of a wrist watch having thermoelectric generator, the watch case which is closed is manufactured by fixedly attaching an insulating body to a metal case body, and securely fixing a case back made of metal to the underside of the insulating body, further, the dial, a movement, and the thermoelectric elements are housed in the watch case, and an end face of the thermoelectric elements is brought into contact with the metal case body while the other end face thereof is brought into contact with the case back. Furthermore, the metal case body is provided with a pair of thermoelectric element housings formed on the inner periphery thereof so as to be accommodated inside a pair of band mounting portions formed so as to be protruded from the outer periphery of the metal case body, so that a pair of the thermoelectric elements are housed in the pair of the thermoelectric element housings, respectively. 
Citizen Watch Co., Ltd.
G G G
G04C G04B G04C
inventional inventional inventional
Shigeru
Watanabe