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2021 Novelty: Jaeger Lecoultre Master Ultra Thin Moon 39 Blue Dial. Some thoughts.

Nov 03, 2021,09:26 AM
 

Recently, Jaeger Lecoultre revisited the Master Ultra Thin Moon. They offer it in a new 36 mm case, which is really nice with its opaline dial and its " improved " Cal 925, and in a 39 mm case we know since 2011, but here, slightly slimmer as the first one was 9, 9 mm, which is 9, 3 mm high, now. Even slimmer than the 36 mm case which is 9, 4 mm high! 

The MUT Moon 36:

The water resistance doesn't change. It is 50 meters. 

The big change is the dial, which is soleillé blue, and a redesigned moon phase. 

The other improvement is mechanical. The Cal 925 does have a power reserve of 70 hours, now, like some of the Master Control unveiled in 2019. A real improvement, as it had a power reserve of around 40 hours, before. To be precise, before 2019, as this novelty was inaugurated with the Master Ultra Thin Moon with the mighty guilloché blue enamel white gold case.

This technical improvement can be found on all the MUT Moon 39 ( and 36 ) since this year. That means that if you want the opaline version, or the black one, or the 36 mm, you will have this longer power reserve. Good news, isn't it? 

The MUT Moon 39 Black: 

Now the big question is to know which is my favorite. The Guilloché blue enamel is not the one I prefer. The cost is too high for me, and even if it is a eye catching one, I would prefer a smooth blue enamel, truth to be told. 

The White Gold MUT Moon 39 Guilloché Blue Enamel: 

No, in reality, I am more hesitating between the black and the new blue.








The Black has a stronger look, while the Blue is a bit more refined. Two different characters or partitions. 

Unless a surprising MUT Moon 36 overtakes them as its proportions are very consistent ( a case / movement size ratio ). 

What is your take, here?

Best,

Nicolas


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Comments: view entire thread

 

I prefer the black dial to the blue.

 
 By: lm6 : November 3rd, 2021-09:51

1 for the Black. Thanks, Im6.

 
 By: amanico : November 3rd, 2021-09:53

Thanks for sharing, Nico.

 
 By: Lankysudanese : November 3rd, 2021-10:18
How did they almost-double the PR? Did they add another barrel?

No They worked on a new silicon escapement and pallet, a redesigned barrel, and new oils have been used, among a few other things.

 
 By: amanico : November 3rd, 2021-10:47

Thanks, Nico.

 
 By: Lankysudanese : November 3rd, 2021-11:12
I’d heard about the new oils, but didn’t know about the other improvements. 👍🏿

Pleasure, my friend.

 
 By: amanico : November 3rd, 2021-11:17

It would be nice if such an escapement can make it into the reverso line. A long PR is perfect for a manual watch.

 
 By: Lankysudanese : November 3rd, 2021-11:18
Don’t you think?

I think it is just the beginning.

 
 By: amanico : November 3rd, 2021-11:19

This would be it for '22!

 
 By: Reuven Malter : November 3rd, 2021-12:00

I do hope so.

 
 By: amanico : November 3rd, 2021-13:02

Very nice offerings. Normally I would lean to blue — but, I think black would get the nod. A certain elegance.

 
 By: orahu : November 3rd, 2021-11:34

2 for the Black, now. Thanks, Orahu.

 
 By: amanico : November 3rd, 2021-13:29

Love it

 
 By: Cookies : November 3rd, 2021-11:50
I’ve been eyeing the petrol blue for a while. It could be sooner or later. Great post and great job JLC.

2-1 for the Black. I keep my fingers crossed for you, my friend.

 
 By: amanico : November 3rd, 2021-13:31

Black one for me as well.

 
 By: J K : November 3rd, 2021-11:56

3-1 for the Black. Thanks for your vote, J K.

 
 By: amanico : November 3rd, 2021-13:33

It’s hard to know for sure without live photos

 
 By: mhz vph : November 3rd, 2021-12:16
But I bet that I would prefer the blue.

Black power ! ( i try the blue one, a very nice watch, but for me the PDL is not contrasted enough with the dial )

 
 By: leopold : November 3rd, 2021-12:40

Thanks for your feedback, Leopold. 4-2 for the Black.

 
 By: amanico : November 3rd, 2021-13:34

Ok, then 3-2 for the Black. You are right, to be seen in the flesh. I can't wait!

 
 By: amanico : November 3rd, 2021-13:34

Just

 
 By: xxn : November 3rd, 2021-12:59
imagine this were manual wind 🤔 and 36mm, those were my reservations during my prior ownership of the white 39mm and which I let go for feeling sterile. JLC are getting close🤞🤞

Ay Ay Ay... THAT would be topissimo!

 
 By: amanico : November 3rd, 2021-14:00

Blue is stunning, tempted, maybe you can get a WPS discount 😂😂

 
 By: Miranda : November 3rd, 2021-13:22

Tie! Hehehe, my friend, that would be great. We can always dream. ;)

 
 By: amanico : November 3rd, 2021-14:02

I vote blue since I don’t have a blue watch anymore..

 
 By: K-Lo : November 3rd, 2021-14:27

Thanks, Ted. 4-3 for the Blue.

 
 By: amanico : November 3rd, 2021-16:51

Blue beats black

 
 By: robsallnow : November 3rd, 2021-17:31
I was very lucky to try on the new blue dial MUT Moon on Saturday and I have to say it’s STUNNING, it seems to be so much better than the blue RDM….it’s very tempting but I have the silver dial version already and except for the lack of 70 hour power rese...  

Thanks for sharing this picture which is much better than the official ones. 5-3 for the Blue.

 
 By: amanico : November 3rd, 2021-17:33

My advice is useless

 
 By: Jurry : November 3rd, 2021-17:31
Because I would go fir the guilloche dial lol

No, no.... Vote counted: 5-3-1 for the Blue.

 
 By: amanico : November 3rd, 2021-17:34

I have an older version of the 39 mm with silver dial and love it

 
 By: Radwatches : November 3rd, 2021-18:01
Certainly my most comfortable dress watch, and I think 39 mm is the perfect size for my wrist. I prefer the silver dial, as I am a sucker for the blued seconds hand. If there's one small change I'd consider making to the dial, it'd be to make the "31" on ...  

Ok. 5-3-1-1. Vote is getting tougher to count. ;)

 
 By: amanico : November 3rd, 2021-18:33

I think I would go for blue, if possible in 36mm

 
 By: slungu : November 3rd, 2021-19:10

6-3-1-1 for the Blue, then. Thank you!

 
 By: amanico : November 3rd, 2021-22:38

36mm is perfect!!!

 
 By: jleno : November 3rd, 2021-19:54
Love the new blue dial as well!

Yes, I like the 36 a lot, too.

 
 By: amanico : November 3rd, 2021-22:39

I love both but i might take the black here. This is a serious contender for my 2nd JLC in the collection!

 
 By: Chronometer (aka yacomino) : November 3rd, 2021-20:33

6-4-1-1 for the Blue. Thanks, Chronometer.

 
 By: amanico : November 3rd, 2021-22:39

What for me is difficult

 
 By: Weems@8 : November 3rd, 2021-21:09
I understand a brand thinks about design. Using hands that blend into the dial, hard to read time. A picture can be different than see the watch in flesh. Guilty to this, one of my favorite watches which i can not leave alone and get full wrist time is ha... 

Thanks, Weems.

 
 By: amanico : November 3rd, 2021-22:40

Lovely pieces...

 
 By: bruckner4 : November 4th, 2021-00:24
lean toward the black from these pics.

6-5-1-1 then. Thanks, Bruckner.

 
 By: amanico : November 4th, 2021-06:12

I like the blue one. But sad why JLC does not offer the 36mm in other colors. I mean...only 1 colour? C'mon JLC.

 
 By: hoseachandra : November 4th, 2021-01:14

7-5-1-1. Yes, in blue and in 36 mm that would have been great.

 
 By: amanico : November 4th, 2021-06:13

Nicolas

 
 By: Mostel : November 4th, 2021-02:29
Thank you! I appreciate the increased PR. Other than that... the changes are verrrrrry ummm 'nuanced....' The moonphase looks essentially the same? What is different about it? I need changes I can recognize... chuckle! I really see little to nothing to sp... 

No, the stars and the moon are not gold but silver, and there smaller and more stars in the new moon phase. The blue sky looks darker, too. And the indices seem to be longer. Especially the double indices at 12.

 
 By: amanico : November 4th, 2021-06:18

Thank you for the clarification!

 
 By: Mostel : November 13th, 2021-00:04
M

Pleasure, Mostel.

 
 By: amanico : November 13th, 2021-00:20

The dial is too clinical for me… cold and lack of poetry…

 
 By: Alfihar : November 4th, 2021-05:43
I’ve always preferred warm moon… Even though I think JLC has improved its caliber… this watch reminds me of a magnificent frigid woman… something is missing to make it attractive ... A moving screw maybe ... 😂😂😂 or something else…

Thanks for your feedback, O. Clean, I see your point. Lack of poetry, at the limit, why not. But cold? In black or in blue? That I don't see...

 
 By: amanico : November 4th, 2021-06:20

I wore these watches on my wrist at the store when I was looking at the moon phases.

 
 By: Alfihar : November 4th, 2021-06:40
The texture of the dial reflects a cold, clinical light ... It’s personal taste, I know. in the photos these watches may be desirable ... but in reality - at least for me - nothing happens ... no emotion (I wrote emotion correctly). there is something too... 

That's the most important, the " in the real feeling ", indeed. Thanks for sharing it with us, my friend.

 
 By: amanico : November 4th, 2021-09:57

Nice to go back to 36mm - great size.

 
 By: jml_watches : November 5th, 2021-11:42
I'd go for a black dial Cheers JML

7-6-1-1 for the Blue. I can only agree on the 36 mm! Thanks, my dear jml.

 
 By: amanico : November 5th, 2021-11:44

in love with the blue!

 
 By: sebks : November 5th, 2021-14:34
it brings the "pop" which was missing in the silver dial (which i agree looked a bit "clinical") Does anybody know if already available in stores? Best regards Seb

From what I understood, yes it is already available in stores. 8-6-1-1 for the Blue.

 
 By: amanico : November 5th, 2021-15:03

Let me join the fun, and vote for the black.

 
 By: Rhyzen : November 6th, 2021-05:43
The blue is nice, but I thought the black dial provides a better contrast for the moonphase.

Aaaaah, we are close to the tie: 8-7-1-1. Good point you raised, here.

 
 By: amanico : November 6th, 2021-08:00

Blue for me.

 
 By: pmh6000 : November 6th, 2021-13:07

9-7-1-1 now. Thanks for your vote, my friend.

 
 By: amanico : November 6th, 2021-15:28

Black, Blue, White, Rose

 
 By: Lunar fan : March 11th, 2023-13:01
A lot of my purchase decisions are about what gaps are in the watch box at home I tend towards Blue and White Gold/Platinum; lately, Black on rose gold seems to pop And 36 is quite small, even 39 is a little smallish J'adore le 39 Guilloché Blue Enamel --... 

For you...

 
 By: amanico : March 11th, 2023-17:28
...