55arin XNUMX% Kashe Umurninku na Farko
Hamilton Watch Company, Grade 992B. Bayan shekaru 10 na bincike mai zurfi, tun daga 1931, Hamilton agogon kamfanin ya gabatar da sabon agogon aljihun layin dogo, 992B ga masu siyar da su a ranar 5 ga Nuwamba, 1940. Sabon motsi na 992B ya fara zuwa samfur, a watan Yuni 27, 1940.
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