watches with 2 balances: ie the Dufour Duality or the Journe Resonance

have as main objective to increase the accuracy rate of the timepiece: each balance canceling the deviations of the other.

As for tourbillons there is a huge debate between watchmakers as to the true chronometric utility of a tourbillon: made originally to cancel deviation rates when the watch is in one singe postion (pocket watches) the benefit is zeroed out in a wrist watch according to some, whereas for others a well regulated tourbillon has superior accuracy to a non tourbillon escapment...

Philippe Dufour Duality:

Journe Resonance:

		And now for something totally different...	dshao1	Apr 2, 08 23:41
		double tourbillons like this are has been...the next big thing is a	Alex Ghotbi	Apr 3, 08 08:16
		Is this a joke? Horrendous!!! NT	Chronometer	Apr 3, 08 15:59
		Re: And now for something totally different...	les masque	Apr 3, 08 17:46
		watches with 2 balances: ie the Dufour Duality or the Journe Resonance	Alex Ghotbi	Apr 3, 08 18:07
		Re: watches with 2 balances: ie the Dufour Duality or the Journe Resonance	Roman	Apr 3, 08 18:45
		Re: Re: watches with 2 balances: ie the Dufour Duality or the Journe Resonance	MikiJ	Apr 3, 08 20:20
		Re: Re: Re: watches with 2 balances: ie the Dufour Duality or the Journe Resonance	Roman	Apr 3, 08 22:05
		Re: Re: Re: Re: watches with 2 balances: ie the Dufour Duality or the Journe Resonance	MikiJ	Apr 3, 08 23:09