A special edition collaboration between Habring² and Passion Fine Jewelry, this "Grand Erwin" represents the first ever Habring² Erwin in a size larger than 38.5mm. As with all Erwin, this watch features Richard & Maria's famous jumping seconds mechanism which can be viewed from the sapphire caseback. The silver dial features three dimensional Lumicast indices for considerable brightness in the dark.
The reverse side reveals Habring's patented Manufacture A11S caliber which beats at 4Hz and carries approximately 48 hours of power reserve. A tangential screw is in place for fine adjustment and the anti-magnetic escapement is fit with a Carl Haas hairspring of Chronometer quality.
The case measures 41mm x 11mm x 49mm lug-to-lug and is in excellent condition. Complete with Box & Papers dated December 2020.
This watch received a Complete Overhaul at the Habring² atelier August 2025.
