FGr the deveiopment of Dur new so 圭 ar GQ , special emphasis has been put on the following points :ω the watch dGes not easlly stop , ( 2)charge time required is not long , and ( 3)the watCh face design is attractive , The metho 盛s we have adopted to satisfy these pDints are ; ( A > the structure 孟 n which む he s ・ lar celi and the liquid crystal cell are ] aminated . and ( B)the use ・ faglass − made ・ solar ・ cell . By use of these two methods , the deve lopment of high − perfbrmance

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... solar CQ no し available so far has been attained 、 1. は じ め に