Lange & Sohne Grande Lange One 25th Anniversary, 7th opus. July 2019.
For the 7th opus of the 25th Anniversary Saga, here comes the Grande Lange One. With a dial we now well know, in solid silver with its blue indices, the case, in white gold, is logically bigger than the 1st opus, with a diameter of 41 mm for a height of 8...
From their website on Lange 1 model range, not difficult to guess...
3 more pieces not shown with the anniversary versions yet.