观看免费视频 Model Timer-stopwatch For 20 Min

(18.6 MB) 添加日期27 Mar 2017 播放109次 Home Tech Review Camera
重置
Zoom out
Zoom in
Model Timer-stopwatch For 20 Min

动画说明:

This is a mechanical timepiece which can be set to the desired time of 1 to 20 minutes. The timer has a unique roller pendulum and amplitude adjustment system on the back wall.
Our timer works from the usual clerical gum. When you move the arrow and lower the handle the countdown starts. Both minutes and seconds arrows operate.

|