A. Lange & Söhne

Hello everyone i have question about friction among components in movement. For example , in zeitwerk ,the dial-rings are same as date-ring in other watches, such as lange 1. however, the most date-ring is just put on the plate, which means there is frict... 

Yes, you are absolutely right to be concerned about friction. As any watch will suffer from friction in terms of wear and tear, this Lange, and a few more Langes with the same "principle", are also worrying me! Now, the example of the Zeitwerk that you me... 

Obviously, the Zeitwerk system is much more demdanding than the classic date display. But I trust Lange about the reliability of the system. You have to consider that even if there are methods to simulate a long movement work, nothing can replace the real... 

Thank you for your respond as it made me wonder of another aspect, next to wear and friction: the vaporisation of lubricant. This ZW has been tested with a five times faster running prototype (Homogenisierungs-Uhr) so that fading and abrasion and also rel... 

After the test , will disc scratch the plate badly or nothing ? thanks

In a manner that i love! Danke Count, and i trust all is fine with you! Tschuss Stephen

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guys, thanks for reply. i found two figures from Internet, please look at the red arrow, they are point to one component in both picture. i realize there is same component in L1 timezone for its city ring and it seems just connect to the plate. if this co...  

In reference to your discs problem: often things look the same but are not. Xavier will explain the latest Lange creation soon and till then any thoughts are wild speculations. I am sure there will be no damage to any plate. Damage is also not the appropr... 

thanks for your information. in fact , i had a big argument with my friend, and he said if the disc directly touch the plate and rotate hundreds time per day, the surface of plate will be terrible and all decorations on plate surface will gone. but i just...