型號/Model...........................10型 / cal.10
石數/# of jewels................ ....10J
生產年份/Production date.... 1925~35
口徑/diameter......................28mm
入手難易度/Rarity................★★★★☆
備註/Remarks......................軍表 / Military watch
Seiko, Shanghai, Seagull, Beijing, Wuyi, Zuanshi....and a lot of Chinese vintage watches