| 摘要 |
PURPOSE:To simplify assembly and structure by combining a minute-hand crown, minute-hand block and hour-hand block with a step motor. CONSTITUTION:This timepiece is equipped with minute-hand crown 3 driven by step motor 1, minute-hand block 4 fixed coaxially to minute-hand crown 3 having knob 4e and provided on the front of case 6, and hour-hand block 5 driven harmonically by minute-hand block 4. To make a time adjustment, knob 4e of minute- hand block 4 is turned. |
