The revolutionary coaxial escapement devices and noo-card-degree hairspring balance wheel ensure the long-running accuracy and reliability.
命
轴擒纵装置和野应卡度游丝摆轮确保长期运行准确和可靠。
The revolutionary coaxial escapement devices and noo-card-degree hairspring balance wheel ensure the long-running accuracy and reliability.
命轴擒纵装置和野应卡度游丝摆轮确保长期运行准确和可靠。
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