JLC Master Perpetual Calendar Moonphase Issue
Complications

JLC Master Perpetual Calendar Moonphase Issue

By christianch · Dec 23, 2021 · 25 replies
christianch
WPS member · Jaeger-LeCoultre forum
25 replies5388 views4 photos
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Christianch's detailed post on the Jaeger-LeCoultre Master Perpetual Calendar's moonphase accuracy, juxtaposed with a Glashütte Original, sparks a crucial discussion for collectors. His query highlights the complexities of perpetual calendar adjustments and the varying user experiences with these sophisticated mechanisms. This article synthesizes community insights to help owners understand and troubleshoot their moonphase displays.

Siince there are a few owners in the forum I could use some help: is the moonphase display wrong on ?

I am based in Switzerland

Here the JLC 









and the glashütte


pity that the moonphase cannot be adjusted individually on the JLC...


Key Points from the Discussion

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The Discussion
PA
patrickh
Dec 23, 2021

that there is only 1 pusher to change all data (Month, Day, Date, Year and moon). In fact, the watch is programmed to function where you live. So, did you buy your watch in Switzerland? Or from another country? You should ask JLC to re-program your watch. To be confirm by others Experts here. Nice watch. I sold mine (old version) because when I wore it by rotation, I every time had to make 1 push from each every day from watch stop to the current day/date.

CH
christianch
Dec 23, 2021

and I did buy in Switzerland I don't recall it being wrong but has been some years ! I have it on the winder and is really nice (beside being a bit tricky to read even with good glasses) the glashütte much easier to read

PA
patrickh
Dec 23, 2021

if I am not wrong. You could check the correct time change, turning hour & min hands manually ;-) Hope it helps.

RO
roundel
Dec 23, 2021

Your GO looks a couple days fast. My GO is within a day of accurate.

MD
mdg
Dec 23, 2021

...so yes, it's wrong : )

WA
watchme
Dec 23, 2021

unfortunately, a trip to the factory for a realignment of the module. Sorry. -Dean

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