The Gronefeld Gems
By: ArthurSG : July 12th, 2012-07:06
Here are pictures of the Gronefeld One Hertz and the GTM-06 Tourbillon Minute Repeater in Gold... First up, The One Hertz shown mainly in Titanium.. "To adjust the time, instead of pulling out the crown, you depress it till the hand (see immediately pic b...