When I picked up my grandfather's watch, I was able to try on the new Master Control Chronometer.
And the Date version ref. Q4158120 was a very pleasant surprise.
The blue-grey gradient sunray dial is simply wonderful. And the date window with matching date disc is very well executed.

The
38 x
8.4 mm
case has a
perfect size and
fit on the
wrist (at least on my 16 cm wrist).

The
bracelet design is
original and much better looking than the photos can show.
It features
intermediate links in the shape of
triangular prisms featuring
angles which are
echoed on the
outer part of the
links and which draw
inspiration from the form of the slim
Dauphine hands and the matching, faceted shape of the applied
indexes.
Only
drawback:
no micro-
adjustment system is featured (but I know from experience with my Alpine Eagle that it's not necessarily a problem).


The
8,4 mm thickness makes the watch a
pleasure to
wear: it really blends into the wrist.

And the new “
HPG”
caliber 899 is much more
pleasant to
look at than the previous versions of it.

“
HPG” stands for “
High Precision Guarantee” and was
featured on some watches from the
1970s, especially some equipped with
caliber 916, like this
Memovox “
Egg”:
credit: Analo ShiftBut this “
High Precision Guarantee” is now
revived as the new “
Jaeger-LeCoultre Seal”, which
evaluates performance against four critical elements of daily wear:
altitude,
shocks,
positions, and
temperature.
It also implies
aesthetic improvements as the
caliber 899 has been
refined: the
balance cock, in particular, has been
thinned down, as you can see from the photos below (if you want to learn more about HPG, read the
press release here).
New HPG 899 Caliber


Previous 899 Caliber 

credit: Monochrome, Deployant & Jaeger-LeCoultreI was also able to try on the steel Date Power Reserve version ref. Q4168120.
Although it is very nice looking in its own right, the 39 x 9.2 mm size didn't look and feel as nice on my wrist.

But
apart from this
size drawback it is still a very
nice watch.
Side by
side, the
Date Power Reserve might look a little
more eye-
catching, my
preference for the
Date only version
remained: simpler, slimmer, better (for me).

Finally, I also tried on the
Perpetual Calendar in
Pink Gold ref.
Q417216J, with its
bronze-coloured
sunray dial and
hammered gold leaf moon.

The
case has the
same 39 x
9.2 mm
size as the
Date Power Reserve.
And the
dial is
too busy for me, with a
two-part digital year display and a “
critical”
zone indicator just above the canon pinion, which I
don't like very much.

In conclusion, the
steel Date Master Control Chronometer is a
very appealing watch and a
clear winner for me among the other models of the line.
However, the lack of a screw-down crown and the limited water resistance to 50 m are a problematic choice for those who, like me, wear this type of watch mainly in the summer (otherwise, I could be tempted)...
What are your
thoughts on this
watch in
particular and on this
new line in
general?
Thanks for reading.
Best, Emmanuel