JLC models moonphase accuracy question

A few hours ago a friend of mine forced me to revisit the issue of moonphase accuracy on our watches. I understand with some but not 100% clarity that it is governed by the number of teeth on the moonphase wheel of the movement, and that the kind with 59 and 135 teeth produce an error of one day in just under three years and in 122 years respectively (ref: www.hautehorlogerie.org )

I have duly completed my research but the findings are broad engineering concept and not specific information on the particular JLC models with moonphase. This accuracy information is not listed in the technical details section of various models on JLC web site. Could someone with familiarity of this moonphase wheel teething please fill in the blank for me? This curious mind begs you. It is not a quest for the ultimate mechanical supremacy. Rather, it is a case of getting to know one's own possessions better, if I can put it that way

MUT Moon 39=59 teeth?
Master Calendar=59 teeth?
Grande Reverso Calendar=59 teeth?
MUT Perpetual=XX teeth?
Master Eight Days Perpetual 40=XX teeth?
Duomère à Quantième Lunaire=XX teeth?

Thank you very much for any information you can share.

As an aside, I don't know how many teeth there are on the moonphase wheel of the Atmos clock. But surely there must be a whole lot of them given the large size of the clock relative to wristwatches. The JLC web site still lists moonphase accuracy for the simple Atmos model at one day deviation in 3,821 years (http://www.jaeger-lecoultre.com/AT/en/watches/atmos-classique-phases-de-lune/5112202#/t1). How appropriate for the Atmos...

Ruckdee

I asked for the Duometre à QL... It is the short version.

By: amanico : December 28th, 2013-10:31

I mean, with a 2 to 3 years accuracy. If I remember well, the Master 8 Days Perpetual is 122 years accurate. Best, Nicolas

That is exactly what I wanted to know. Thank you so much! [nt]

By: Ruckdee : December 28th, 2013-18:08

Let me check for the 8 Days Perpetual... I am not sure, though.

By: amanico : December 28th, 2013-23:43

No problem. Will patiently wait to hear the definitive word on that. Thank you. [nt]

By: Ruckdee : December 29th, 2013-06:12

The perpetuals are the same module...

By: watchme : December 30th, 2013-06:40

and are the 122-year variant. The Duometers are, like the Master Calendar and the Duometers, 59 teeth. -Dean

Thanks for the clarification, Dean.

By: amanico : December 30th, 2013-07:10

Many thanks to both of you. Now it is easy to remember.

By: Ruckdee : December 30th, 2013-15:17

It is the long 122 years type if it is perpetual calendar. That's awesome. Ruckdee

Moon Phase module

By: biw : January 1st, 2014-18:01

There is some information about the moon phase module on this web site. JLC has been using the IWC Calendar plate for their perpetuals. Quote: That new movement was not to have any ordinary moon phase indication. Traditionally, most watch companies used ...

Sorry for the late response. I was traveling and also sick.

By: Ruckdee : January 2nd, 2014-17:55

I didn't check the web sites again until this minute. Thank you very much for pulling those information for me. I have seen the second link once but failed to find it again. The first one is new to me. Both are very interesting and relevant. Big thanks to...

Welcome

By: biw : January 3rd, 2014-14:37

You're welcome. A good read. There are some watches whose moon phase is accurate for over 500 years (i.e. Patek 5140G)! And then there is the Ochs und Junior Moon Phase Platina watch with 5 parts, so that it would go off balance by 1 day, a single time in...