, a period of time mechanism:
1676, British watchmaker Edward Barlow invented the timekeeping mechanism rack, which laid the foundation for the invention of the table to ask.
< p > 17 in the 1980s, British another watchmaker Daniel quare to further improve the two asked spring structure and obtain a patent. He invented safety device only when fully started playing spring mechanism, will be issued in timekeeping voices. After he made a moment to ask, then watch the spring type play gradually increased.
two, two asked table period:
< p > in 1783, Abraham-Louis Breguet made timekeeping table spring mechanism,
www.fashionsalewatch.com, so in his works often with crisp sound for two minute repeater table brings new development.
in eighteenth Century,http://www.love4usale.com, the two asked the table to become the most important type of table,www.heuer-breitling.com, the two asked table can be issued two different tones, respectively, when the "time" and "engraved (15 minutes)", when in the dark can not identify time, the function of this table will come in handy.
another five minutes time is two. First sound to represent the hours and the second sound represents five minutes. For example: when, when, when, when, when, when, when, when, when, when, (loud sound of ten), Ding, Ding, Ding, Ding, Ding, Ding, Ding, Ding, Ding, Ding, Ding, (ring 11 sound), is at ten to fifty five. That is to say it is reported that the time of maximum error is five minutes.