Prevent the deformation of the bottom cover to affect the sealing performance of the watch.

避免底盖变形影响手表密封性。

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Step two: open the bottom cover of the watch.

步骤二：开启手表底盖。

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Watch it-the bottom stair is loose!

当心—最下面一级楼梯松了！

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Watch it-the bottom stair is loose!

当心—最下面一级楼梯松了！

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