Lang & Heyne 单按钮计时
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Lang & Heyne monopusher chronograph with central minute and second registers
The Caliber IV movement
DIAMETER 16 ¼ lines (36,6 mm)
FREQUENCY 18.000 semi-oscillations per hour
RUNNING TIME 46 hours
JEWELS 22 rubies, 1 diamond
Shock-resistant gold-screw balance
Breguet spring
Swan-neck fine adjustment
Pulsating eccentric sweep hand
Sweep hand stop mechanism
Winding wheels with double solar finish
Monopusher column wheel chronograph
Chronograph wheels in gold with two hundred teeth
Minutes counter mechanism installed on the backside
Frictionless decoupling of the minutes counter, when the chronograph function is not in use。
gooyee 发表于 2014-8-28 23:56
分秒中心计时，机芯设计新颖，打磨到位，LANG不愧是顶级制表师。
- 回复 5楼
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- ken@ycadv.com
- 2014-09-09 14:42
据说德国第一人
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