Just gonna throw this here before I knock off shift. A mechanical watch that ticks once a second. On purpose.
The original watch limited to 12 pieces.
http://www.ablogtoread.com/gronefeld-one-hertz-1912-dead-beat-seconds-watch/
The G-02 movement performs "one operation per second," which accounts for the watches' One Hertz name. The watch actually runs at a 2.5 hertz rate which I think is 21,600 bpm. So how does the second hand move only one place each second? Well it is really complex actually. Most watches like this have some type of constant force escapement, but the G-02 does not. It has a complex system of two mainspring barrels that work together to tell the time. Each mainspring barrel has its own gear train, but they are connected to work in unison. So one works to move the seconds hand, and another moves the hours and minutes. Not totally sure though how the seconds operate so slowly (most mechanical watches have the seconds hand tick rapidly at 5-10 times per seconds to make it look like it is sweeping), but here the seconds hand ticks just once per a second. The only true sweeping seconds hand is on a Seiko Spring Drive watch (as far as I know) - though perhaps on a tuning fork movement (I just don't know enough about those). Anyhow, Gronefeld worked to ensure that friction was really low in the movement to promote accuracy.
Thinking about dead-beat second watches is interesting. They really date back to old pendulum clocks that ticked once per a second as well. So you can consider the One Hertz to be just like that, a pendulum on your wrist. The G-02 movement is going to be pretty interesting, and I am amazed that Gronefeld put this much work in to developing it for a watch that is limited to just 12 pieces. Oh, and it will have a power reserve of 60 hours. If you are wondering, the "1912" part of the piece's name comes from the date when Tim and Bart's grandfather first became a qualified watch maker. I think just calling it One Hertz would have been enough, but you have to send a shout-out to family right?
And the new Dune version which I think is absolutely STUNNING.
http://www.ablogtoread.com/gronefeld-one-hertz-dune-watch/
The original watch limited to 12 pieces.
http://www.ablogtoread.com/gronefeld-one-hertz-1912-dead-beat-seconds-watch/
The G-02 movement performs "one operation per second," which accounts for the watches' One Hertz name. The watch actually runs at a 2.5 hertz rate which I think is 21,600 bpm. So how does the second hand move only one place each second? Well it is really complex actually. Most watches like this have some type of constant force escapement, but the G-02 does not. It has a complex system of two mainspring barrels that work together to tell the time. Each mainspring barrel has its own gear train, but they are connected to work in unison. So one works to move the seconds hand, and another moves the hours and minutes. Not totally sure though how the seconds operate so slowly (most mechanical watches have the seconds hand tick rapidly at 5-10 times per seconds to make it look like it is sweeping), but here the seconds hand ticks just once per a second. The only true sweeping seconds hand is on a Seiko Spring Drive watch (as far as I know) - though perhaps on a tuning fork movement (I just don't know enough about those). Anyhow, Gronefeld worked to ensure that friction was really low in the movement to promote accuracy.
Thinking about dead-beat second watches is interesting. They really date back to old pendulum clocks that ticked once per a second as well. So you can consider the One Hertz to be just like that, a pendulum on your wrist. The G-02 movement is going to be pretty interesting, and I am amazed that Gronefeld put this much work in to developing it for a watch that is limited to just 12 pieces. Oh, and it will have a power reserve of 60 hours. If you are wondering, the "1912" part of the piece's name comes from the date when Tim and Bart's grandfather first became a qualified watch maker. I think just calling it One Hertz would have been enough, but you have to send a shout-out to family right?
And the new Dune version which I think is absolutely STUNNING.
http://www.ablogtoread.com/gronefeld-one-hertz-dune-watch/
