Automatic Spring Drive 3-Day
Caliber 9R15
Caliber 9R15 is specially adjusted Caliber 9R65, to deliver an even higher level of precision.
Caliber 9R65 is ±15 seconds a month (equivalent to ±1 second per day), whereas Caliber 9R15 is ±10 seconds a month (equivalent to ±0.5 seconds per day).
The difference between the two movements lies in the quartz crystal oscillator, which delivers accurate electrical signals.
All 9R Spring Drive use quartz crystal oscillator with stable accuracy. Among them, only quartz crystal oscillator, which exhibit particularly excellent performance, are selected and mounted on the Caliber 9R15.
The Grand Seiko lion in 18K gold graces the oscillating weight to symbolize the enhanced accuracy.
规格
| 上链方式 | Automatic with manual winding |
|---|---|
| 精准度 | 每月误差±10秒(每日误差±0.5秒) |
| 动力储存 | Approximately 72 hours |
| 宝石数 | 30 jewels |
| 特色 | -Power reserve indicator |
Spring Drive是什么？
Spring Drive是一种独特的手表技术，它结合了来自主发条的动力与来自电子表的高精准度。如同所有的机械表一样，Spring Drive使用穿戴者手腕动作产生的能量去驱动指针，但它也利用这种能量去产生驱动一种独特的整律器的电能，它的精准度比任何传统擒纵机构都还要高10倍以上。
