News: Urwerk EMC – user-adjustable mechanical movement with electronic time monitoring (with explanation and specs)Urwerk has just taken the covers off its latest creation, the EMC. The EMC combines a mechanical movement with an electronic sensor and integrated circuit, both of which monitor the rate of the watch. The wearer can then adjust the movement as necessary to ensure good timekeeping.
A high-end quartz movement would seem to be an oxymoron. But it does exist in the form of the Seiko 9F calibre, a supremely sophisticated quartz chronometer rated to +/- 10 seconds a year. Used primarily in Grand Seiko watches, the 9F is possibly the best quartz movement in the world.