Made of a special alloy, the balance spring is fabricated exclusively by Nivarox (Swatch Group).Its complex set-up requires craftsmen dedicated to this task only.

Swatch集团的Nivarox 公司，出品采用合金材料的擒纵杠杆，生产这种产品这需要非常好的手艺。

Ridges on achene surface in Senecio and Taraxacum are useful for absorbing small particles or control-ling surface temperature.Spinule on achene of Taraxacum may be fit for epizoochore.

千里光属植公英属植瘦果表面的纵更为突起，可能有利于吸附控制表面温度，公英属植瘦果表面的微刺可能有利于2次传播。