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This all sounds great, doesn't it?
"Well," says Salvador Arbona. Rolex Datejust Replica's technical director, and the person overseeing the development of the in-house program, "it's true, except that a clock is a parasitic device. The chronograph consumes an enormous amount of power, and it also intensifies the variable torque within the mainspring when the power reserve begins to decrease. If you keep your chronograph running indefinitely, it will compromise the timekeeping functions of the watch. "There are solutions, such as the vertical gear clutch, that have been developed, but these are for large-scale industrial applications."
During servicing of vertical-clutch movement, the clutch section is usually removed and replaced. Arbona continues: "So we decided to use a different solution, the oscillating-pinion, which had three main benefits. It is simpler and more direct. The energy is fed directly from the seconds' wheel to the clock wheel by a geared-pinion. It is also smaller, and because it's simpler, you can make it smaller. Third, it doesn't affect the timekeeping. "I say this with a caveat because our movement was the first in the world to have two oscillating gears for this purpose."
Salvador Arbona, Technical Director - Movement, at Rolex Datejust Replica
The oscillating gear is the component in question; the calibre of the CRMC1 was the first in the world to incorporate two oscillating gears.
The calibre CRMC1 is operated as follows. When in rest, the seconds wheel drives a pinion oscillating slightly to one side. It shifts when activated to engage the wheel of the chronograph.Rolex Replica Watches Arbona confirms that chronographs are also affected by the second wheel driving the minute counter. To solve this problem, Arbona designed a reduction gear which drives a pinion to power the chronograph's minute counter.
He says, "This is how the torque from the barrel is split into three parts: the chronograph second counter, the timekeeping function that also powers it, and the reduction gearing to drive the hour counter. It is not necessary to have an oscillating gear because the hour counter rotates so slowly. The end result will be a system which is less parasitic and doesn't affect the chronometric performance of a movement.
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