Heuer Chronograph German Issued Flyback 1550SGThe Bundeswehr 3H ChronoThis is a cool issued military watch in a 42mm steel case with rotating black bezel in great overall condition. This is the more desirable flyback chronograph. The case back features the original German military markings. The black dial features the desirable red 3H making that signifies Hydrogen 3 or as we know it better tritium. This encircled 3H was a stipulation of the military order in the same way the British watches had