A. Lange & Söhne

Sharing some caseback shots of my Dato perpetual after servicing. Looks crisp all over again! However, it also looks like the patina has been “cleaned away”? Still nice to me so I’m ok with it. Enjoy the pics ! Cheers Robin ...  

Miniature city ! Thanks buddy

Yes,Lange cleans the movement patina away as I also saw after the service of my Datograph.

With or without patina Both are nice

OMG, don’t drop it on the tile floor!!

And very careful

thx for sharing

To me, this is what makes Lange, Lange.

Is the patina slowly forming

Sadly, the patina always disappears when Lange cleans and services the movement. No way to keep it. I hope you have it for a long time before it needs servicing again! May I ask, was there a problem that led you to send it in? Or was this (hopefully) prev... 

I sent it for regular maintenance .

Yes, patina on the German Silver movement is usually a casualty of Lange's cleaning process of the disassembled movement plates. Lange will, however, keep your watch case as-is by default - I have seen some early YG lances where the patina on the case is ... 

So far I haven’t seen any on my white gold case on the Dato perpetual . My rose gold Lange 1 has some patina and yes it remains on the case