hi i just wanted to know why no one makes 1bph automatic movements technically they should have better power reserve but less torque right?
You need some sort of mechanism that has a period of 1 beat per hour in that case, keep in mind that a pendulum in a grandfather clock only beats at about 120 per minute. The weight and swing of the oscillating mass would be immense to reach a period like that.
Ah ok Yea, you still need a mass that will oscillate at a 1hz rate, which either needs to be a large mass traveling at a slow speed over a short or a small mass traveling at a fast speed over a long distance. Its just not going to be practical inside a watch.
Rolex used to make a 1bps mechanical watch called the TruBeat - it was just a regular movement with a dead-seconds mechanism added. Not very popular in the end, though. You can read more here: http://www.hodinkee.com/blog/2008/1...eat-another-lesson-in-successful-failure.html As for a modern day one, I don't think it would work from a marketing point of view. One of the big selling points of a mechanical watch is that it sweeps instead of ticks - it's the big differential between an automatic and a quartz. It may help increase power reserve, but automatic winding modules are so efficient these days, I'm not sure it would be necessary. Nice idea, though
That is really the thing, manual winds can have up to a 10 day power reserve so its not impossible to get a long PR, the thing people really do like is that sweeping hand, the dead-beat complication was really dead as soon as Quartz hit.
