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Tools · 10 July 2008, 06:24 AM

There is no reason today why a high quality, fast beat movement, automtic watch cannot be regulated to within 2 or 3 seconds accuracy within 24 hrs.

My personal SMP with the excellent fast beat 28,800bph ca.1120 movement runs consistently at ~1.5 seconds fast.

The co-axial movements have been "de-tuned to run at 21,600bph, presumably to enable the de-coupled escapement to function, and advertise that they are more "consistent" than the non-coaxial. Consistent simply means that the variance each day will not be as great, but they are not likely to be any more accurate... They should also be easily regulated to stay within 2 or 3 seconds daily..

10 July 2008, 06:24 AM	#3
Tools TRF Moderator & 2024 DATE-JUST41 Patron Join Date: May 2007 Real Name: Larry Location: Mojave Desert Watch: GMT's Posts: 43,216	There is no reason today why a high quality, fast beat movement, automtic watch cannot be regulated to within 2 or 3 seconds accuracy within 24 hrs. My personal SMP with the excellent fast beat 28,800bph ca.1120 movement runs consistently at ~1.5 seconds fast. The co-axial movements have been "de-tuned to run at 21,600bph, presumably to enable the de-coupled escapement to function, and advertise that they are more "consistent" than the non-coaxial. Consistent simply means that the variance each day will not be as great, but they are not likely to be any more accurate... They should also be easily regulated to stay within 2 or 3 seconds daily.. __________________ (Chill ... It's just a watch Forum.....) NAWCC Member