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A. Lange & Söhne: The large date display was originally developed by Jaeger-LeCoultre,

which, along with IWC and Lange, was part of the LMH group. Günter Blümlein brought this technology to Lange with the stipulation that Lange was not allowed to use a "zero" in its single-digit date displays; only Jaeger-LeCoultre was permitted to do so. Interestingly, this particular watch was not s
3M
By: Mike Stone
2

Jaeger-LeCoultre: As you can´t test the function of the PC because there is no way back,

I suggest to push the adjuster until end of February 2024 and check the correctness of the leap year function. If it does not work properly, you can argument, that the function not worked correctly since the last revision. I have the first version of J-LC´s PC, and it took 3 revisions until it displ
2Y
By: Mike Stone
1

A. Lange & Söhne: My AD in Europe...

has deployment clasps on stock and change it, if desired. He also send the unused pin buckles back to Lange and so you only have to pay the price difference. The only is that Lange does not have modified leather straps for deployment clasps (shorter length of the strap part where the buckle in fixed
3Y
By: Mike Stone
0

A. Lange & Söhne: The Southern Cross is a constellation (see applique at 12 o'clock) seen in the night sky from the southern hemisphere.

This watch is one of a set of two watches of a limited set (101 sets) named Luna mundi. The other watch is made of white gold and shows a constellation of the northern hemisphere, the "Ursa Major" / big baer
3Y
By: Mike Stone
2

Horological Meandering: Resinification (chemical reaction of the oil with oxygen)...

...has receded more and more into the background since synthetic oils and mixtures were used, the exact composition of which was known and which no longer oxidized. From my point of view, the dry running of the pins in the bearings is the main problem. This can be caused by the slow evaporation of i
3Y
By: Mike Stone
1