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Wristwatch movement
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Patent number 4,223,521
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Issue date Sep 23, 1980
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Citizen Watch Co., Ltd.
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Mituo Saitoh
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G04 - HOROLOGY
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2931163
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G04 - HOROLOGY
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2707861
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Patent number 2,707,861
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G04 - HOROLOGY
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2138345
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Patent number 2,138,345
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G04 - HOROLOGY
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1483744
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G04 - HOROLOGY
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1004755
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Patent number 1,004,755
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G04 - HOROLOGY
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436921
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Patent number 436,921
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G04 - HOROLOGY
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347886
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Patent number 347,886
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G04 - HOROLOGY
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322297
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Patent number 322,297
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G04 - HOROLOGY
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303660
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Patent number 303,660
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G04 - HOROLOGY
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294466
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Patent number 294,466
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G04 - HOROLOGY
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267057
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Patent number 267,057
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G04 - HOROLOGY
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230995
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Patent number 230,995
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G04 - HOROLOGY
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218613
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Patent number 218,613
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G04 - HOROLOGY
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216814
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Patent number 216,814
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G04 - HOROLOGY
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209441
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Patent number 209,441
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G04 - HOROLOGY
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204274
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Patent number 204,274
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G04 - HOROLOGY
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192425
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G04 - HOROLOGY
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189600
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Patent number 189,600
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G04 - HOROLOGY
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178746
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Patent number 178,746
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G04 - HOROLOGY
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175424
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Patent number 175,424
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G04 - HOROLOGY