This is an Alexandre Christie Night Vision chronograph, model AC 6156N MC.
## Key Features
* Night Vision Technology: Features H3 T100 Tritium gas tubes on the hands and hour markers. These provide a constant, self-powered glow for up to 25 years without needing external light to "charge."
* Movement: Powered by a Swiss Quartz chronograph movement.
* Build: Heavy-duty 47mm stainless steel case and matching bracelet.
* Design: Distinctive "Big Date" window at the 12 o'clock position and three sub-dials for chronograph functions.