本帖最后由 喜相逢 于 2014-10-15 14:17 编辑
首先声明,我不是很懂表的内部结构,只是喜欢IWC,喜欢葡七,还没入手,就已涨价

从官方IWC论坛转过来一些资料,供参考。
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calibre 51010, follower of cal. 50010, replaced by cal. 51011 => 3.00 Hertz / small second-indication
calibre 51011, follower of cal. 51010 => 3.00 Hertz / small second-indication / new cogging
calibre 51110, follower of cal. 50110, replaced by cal.51111 => 3.00 Hertz / central second-indication
calibre 51111, follower of cal. 51110 => 3.00 Hertz / central second-indication / new cogging
http://wenku.baidu.com/view/19dbafdc6f1aff00bed51ed5.html