The high-beat movement results in a lighting seconds hand that completes one revolution around the dial every 12 seconds, allowing the Cheap Patek Philippe Replica to precisely record elapsed times with a resolution of 1/10ths of a second.
This lightning seconds hand runs in tandem with the regular chronograph seconds hand, resulting in an unusual sight on the dial when the chronograph is running.
While lightning seconds chronographs have been done before, it’s surprising to see a traditionalist brand such as Patek Philippe have a go at the complication. The function is often associated with brands with a sporty, contemporary aesthetic like TAG Heuer and Zenith.
Despite the seemingly simple idea of tacking on an additional gear train for the 1/10th of a second hand, the movement inside underwent a deceptively complex modification. And in typical High Quality Patek Philippe Replica fashion, the complication incorporates numerous patented innovations that contribute towards better reliability and ergonomics.
On top of that, Patek Philippe has filed seven patents to perfect the 1/10th of a second display, most notably the double-pendulum shock absorber that keeps the chronograph engaged during accidental impacts.
With most high-end brands focusing on classical, decorative features, it is welcome news that Patek Philippe continues to innovate with novel engineering ideas. That said, the AAA replica watches china ref. 5470P does feel like an extremely elaborate and expensive solution to a question no one has asked.
Inside the ref. 5470P is the CH 29-535 PS 1/10, which is based on the CH 29-535 PS, the brand’s workhorse manual-wind chronograph movement that serves as the base for various additional complications, such as a rattrapante.
The CH 29-535 PS 1/10 contains two primary modifications over the base movement – the standard two-pusher setup is now a monopusher, and more importantly the 1/10th of a second chronograph module is added on the back.
Both layers of the chronograph – the standard 1:1 replica watches and fraction of a second – use lateral clutches. Therefore the movement’s designers had to address the downsides of a lateral clutch – namely the challenge of ensuring smooth engagement when the chronograph is activated.
This issue is further exacerbated with the 1/10th of a second wheel, which requires precise angular positioning and consistent, proper engagement while in use. This led to a number of related innovations that were devised to address the issues.
The two grade 1 replica watches clutches are stacked on each other, making them heavy and thick. To ensure the chronograph doesn’t disengage due to inertia that results from shock, a simple but clever idea was patented – the base clutch has a hook that latches the clutch onto the column wheel when the chronograph is engaged.