Autavia Reference 2446 GMT is manual-wind, three-register chronographs, with 12 hour chronograph capacity; second execution screw-back case; even numbers on GMT bezel; polished steel hands with luminous inserts; white chrono second hand; standard size registers

Autavia Reference 741603 GMT is manual-wind, two-register chronographs, with 12 hour chronograph capacity, and date at 6 o'clock; Painted luminous markers; Hands are white with full luminous inserts, and red triangular tips; Yellow GMT hand