Here are a few shots of the new A Lange & Sohne Grande Lange 1 Lumen. It is set to debut at SIHH 2013.
Like all Grand Lange 1's the Lumen will be 40.9mm in diameter, and this german silver movement consists of 400 parts. The Grand Lange 1, despite not having the second barrel, has a power reserve of 72 hours.
Here is a link to a great write-up on the model as well as a "first look" impression and wrist shot: [You must be registered and logged in to see this link.]
M A R K